Not really- the time or two someone pulled something they immediately got cut off. Plus I was somewhat of a tomboy growing up... I remember a couple of boys who took my bike, but I knew who did it & threaten to beat them up if I didn't get it back right now (complete with the 'pull the collar of the shirt' thing). I got it back.
I can only think of one friend who stayed a friend after screwing up my stuff- she scratched my 2nd disc of Lunar 2 to the point that didn't play anymore and got mad when I asked to her buy a replacement copy (insisting since I was already on disc 3 I wouldn't even need it again). I remember she was over when I beat the game... plays most of the ending, then prompts 'insert disc 2'. I turned very slowly, started intently at her for a minute, then quietly got up and turned the system off. I didn't really have many friends by high school, which I imagine is why I let her stick around... but she sure as hell never borrowed anything again, and I made it very clear why. Later on she would do the same thing her copy of Valkyrie Profile. We took her to a Gamestop, forced her to buy a bottle of skip-fix, repaired her game, then kept the bottle to fix our discs that she'd ruined (I finally got to see that Lunar 2 ending.)
The biggest concern for me & theft growing up was actually my brother. He went through a real bad phase during middle/high school. Mostly it was money I lost, but about half a dozen games went missing too. I got real good at hiding cash, and started keeping a list online of what games I owned so I could count once a month & figure out if anything was gone. I guess it's why I ended up here at all- even though he's long since improved and I don't see him much anyway, I never shook the habit of keeping my collection cataloged.
