When I'm not around, I lock my bedroom door - my house s full of toddlers, not mine, don't ask - and the only other "key" - quotes are because the other key isn't technically for my bedroom but it fits anyway - is on my dad's ginormously large keyring. So, if I'm not around, that door only opens in case of thunderstorm, to unplug anything expensive. I have surge protectors but they don't always work as advertised. Beyond that, if the little ones are being particularly good, I'll let them watch me play games. This usually lasts about 30 seconds before they're jumping on my bed. The oldest - 5 yrs old - actually asks me what I'm doing or gives advice. She's kinda a novice gamer. I'm still not willing to hand her a controller yet, but you take her pad away and she'll be a terror all. day.
I keep all the non-animated movies in my room, with a stock list currently numbering 373. If a good animated or Disney flick comes out, I'll probably buy it. I just won't keep it. (unless of course it's Marvel) When we get visitors, say my siblings visit, they can take a few, with the simple stipulation of "you break it, you bought it". I mark them on my list whenever they are loaned out, for obvious reasons. If a movie is something they haven't seen. I'll give them my thoughts. but my tastes aren't necessarily everyone else's - I'd rather watch Saw than anything with Zack Galifanakis for instance.
So in summary, am I nice to anyone that enters my room? I see myself as indifferent, though they may see me as antisocial and distant. I love introducing people to videogames - I have so many - but it's rare for me to find anyone actually interested. I think my parents quickly picked up on the social aspect of my hobby when I was planning activities around raid nights coming out of high school. I have that paranoia that comes with "my room, my stuff" but I've learned to exert a level of control and not be terribly overbearing in that regard.