At sleep away camp, when I was 11, I had this great Coast back-lock, it probably wasn't expensive, but my dad gave it too me, and it was the first locking knife I ever owned, some kid I'm almost sure that I know who it was stole it, I still see the guy around town, now over 15 years later, I never said anything to him, because I was not sure if he was the the person who stole it, but I have always held a grudge. I know this makes me seem a bit crazy, but for some reason I just never forgot about that.
PS, the next visiting day, my dad got me a new knife, also a Coast back lock, and I still have it today.