I lend them my $15 Kershaw Shuffle that I keep clipped to my keys for this very reason. Well also as a bottle opener but mainly as a loaner then I don't care if they lose it or break it or whatever. As others have said though, non "knife people" don't know how much a quality knife is and think whatever you give them is a $5 pocketknife you can pick up at any walmart or hardware store and they treat it as such. When one of my coworkers did this before I got the Shuffle, he was about to attempt to pry something with my Kershaw Leek, luckily he was feet away and I was able to yell and stop him from doing it. The next day I brought him a junk MTech that I don't even remember where or why I got it and I gave it to him to keep. He asked me why I carry that other one (Leek) as this one (MTech) looks much nicer
True story