Most immature thing you've ever done?

[Aunel]

bought a nerf gun.
it was on sale, instead of the usual 50 it was 20 euros (nerf abomination blaster if anybody is interested)

it is awesome, it shoots big arse rockets.

Same, my mate was back from his RAF infantryman training for the weekend and we were bored...So we went and bought 4 nerf guns, went round his, put his sofa and cofee table on opposite sides of the room and had a seige!

nice
bet your mate kicked your arse, him being in the army and all

 

[blipblop]

Me and a friend made a mod for quake (1) when it was hip and the game everybody played, yeah ages ago. in this mod all wepons where a penis.

 

[300lb. Samoan]

my friends and i used to think it was awesome to pile ten guys in the back of my pick-up truck with huge super-soakers and blast people as they left the local movie theater. then one day we sprayed some douchebags who happened to have a pack of bottle rockets in their truck and we got in a high speed chase for about fifteen minutes, never tried that again.

 

[KaiRai]

bought a nerf gun.
it was on sale, instead of the usual 50 it was 20 euros (nerf abomination blaster if anybody is interested)

it is awesome, it shoots big arse rockets.

Same, my mate was back from his RAF infantryman training for the weekend and we were bored...So we went and bought 4 nerf guns, went round his, put his sofa and cofee table on opposite sides of the room and had a seige!

nice
bet your mate kicked your arse, him being in the army and all

Actually it was about evens He's useless without his SUSAT! >

 

[ceforkas]

I pooped on the bush

 

[VicunaBlue]

Prank called 911.

Me and some friends were calling random numbers, one turned out to be the sheriff's department.
also persian cat owner kept saying "buttnugget" with a straight face, couldn't help but laugh.

 

[Andalusa]

I went on holiday to the Isle of Wight recently.
There was a beach and a cliff not too far from where we were staying.

Spoiler: After writing a message in the sand, I went up to the top of the cliff and took this picture

The message is underneath the people.

Spoiler: If you can't see it, here is a close up picture of said message

 

[Mullahgrrl]

I sometimes sneak into the comp. lab in my old school and set all the computers to play slim whitman at full blast.

 

[Macropter]

I once dressed up as a super hero and ran around pretending to shoot people in my building. I wore a fedora, a yellow bed sheet cape, and a clown nose, and I had a Diet Sunkist box as my robotic arm gun. Such fun it was.

 

[curty129]

Shit myself then cried about it afterwards. In my defence I was only 3 months old at the time.

You bastard! You made me laugh! Edit: I dont like laughing >:l

But ive done way too many immature things to count.. Running around a roundabout in my underwear for a dare and chucking chocolate into people's open car windows as they drove past is the one that comes to my mind atm. A van even drove around 3 times before i hit them with a bit.

 

[wwjdftw]

ran out in front of a cop and shot an M-80 at him, oh wait immature things i have done? painted cocks all over my teachers car when he pissed me off on the LAST DAY he would ever see me again

EDIT: i also went to a taco john in Mississippi put a timed fuse on an m-80 and threw it in ordered my food and sat across the street and ate, about 5 min later the m-80 went off, Christ was that funny. People threw food into the air fell out of their chairs spilled shit, the guy running the cash register jumped over the counter and proceeded to "take cover", and people cam crawling out with smoke rolling out the doors, i swear the door opened when the m-80 went off

 

[Lightnix]

...

Also me and my class spent a lesson rubbing one out on the board

... My immature thing is that I actually read the original post of that quote exactly how I've written it. I'm sorry.

 

[Davey Woo]

My friend once walked around a shopping centre shouting "HI I'M BARRY SCOTT, SHAKE MY HAND!"

Most people will get this reference.
He got chucked out because he asked a security guard...

 

[bluepilot]

When on holiday with friends there was this guy (who does not like me) and he said something really nasty to me while standing at the edge of a pool. In the full spirit of immature retaliation I pushed him in. It is a chance given to me by God. It would have been a sin to waste it.

 

[ragamuffingirl]

I convinced my boyfriend to spit in this guys boots. They were sitting outside of his apartment. I still feel really bad. He was so mad and banged on my friends door and his wife wanted to beat me up even though they didn't know for sure that we did it. That was the one of the stupidest thing I have ever done. I still don't know why I did it. It's really out of my character.

 

[NeoDeath90]

Prank called 911.

That's not really immature. More like illegal.

As for me, I can't help but make an innuendo out of anything I hear.

 

[curty129]

My friend once walked around a shopping centre shouting "HI I'M BARRY SCOTT, SHAKE MY HAND!"

Most people will get this reference.
He got chucked out because he asked a security guard...

Awesome Hope i get to shake his hand one day... Tell him i said HEY.

 

[The Youth Counselor]

Oh god...I'm ashamed. I grew up in the Jackass era so I don't even know where to begin.

A lifetime ago, I had:

• 
  -Pretended to get into brutal fights with friends in public.
  -Staged my friend up in fake blood, who then proceeded to lie on the street pretending to be dead. A cop actually drove by and stopped. Thankfully, the officer had a sense of humor.
  -Purposefully talked as loud as possible about embarrassing or upsetting sexual experiences in busy public places.
  -Dressed up in bizarre [http://www.westernemporium.com/mens_victorian_outfits.php] costumes [http://www.shopecko.com/product/index.jsp?productId=3130932&cp=3165999.3054996] when with no occasion to make it appropriate. Then went about the public, sometimes acting in character and sometimes acting like everything was normal.
  
  A couple of times I was asked, "Going to a convention or party?"
  
  To which I replied "No this is how I usually dress."
  
  -Stretched out condoms that I dressed with Cetaphil to give the impression that they were used. Then left aforementioned condoms on doorknobs. Ding dong ditch.
  -Broke out into a spontaneous musical number imitating Gene Kelly's role in Singin' In the Rain while it was pouring rain.
  -Assisted a guy in setting a Porta-Potty on fire. The guy who I was an accessory to committed a string of Porta-Potty arsons and did about five years probation.

God, I was an asshole.

 

[Charli]

Went to school in Pajamas for the 'wear your own thing day'.

No one could not stare. (private school, the kind where sticking your nose in the air is a requirement) That day was awesome, I got to be immature AND smug about it.