I don't think there is enough room for me to type out the crazy/stupid things I've done in my 34 years, I can't even stop at the kid years because I haven't slowed down at all, I just take longer to heal now.
Just last Feb I intentionally skied out of a chute and off a cliff in Montana, then turned waaay to hard and made my knee go backwards and sideways. I thought I could land it, and I did, my knee just couldn't take the force of turning out of the landing. Oddly I just pushed my knee back in place and calmly skied down to within about 25feet of the building with the pretty red cross before I collapsed and was unable to move. To top it off, I took a couple vicodin, put on a knee brace, and skied the easy trails for the rest of the week (fyi, easy trails in Montana = hard trails out east).
I literally can not remember a single year in my life when I didn't break at least one bone and/or got a concussion.
I guess the single stupidest thing my be when I was 3 or 4 and decided I wanted to go to the arcade with my dog. My mom was too busy to take me, So I tied some yarn to my dog's collar and walked him for six hours till I made it to Nathans Hotdogs (it had an arcade in the back). That isn't the stupidest part, the stupid part was calling my mother for a ride home. She had a massive temper, and had been searching for me for hours... I got a beating that would have gotten her jail time these days. God I miss that dog, any full sized dog that can walk with a 3or4yo with a piece of yarn tied to his collar, down a seriously busy road, and both arrive safely, is a very VERY good dog.