Dude - people do shit for all kinds of reasons. Back when I used to teach piano lessons, I taught this little jew kid who's family immigrated from Israel. Apparently in Israel his father had been a cop. The kid had his father's hat in his room. It was blue and said "Israeli Police" on it in both English and Hebrew. I thought it was a kitschy little item because I've never seen that anywhere before and one time when the kid really annoyed the fuck out of me during a lesson, on the way out at the end I just decided to swipe it and stick it in my backpack. He quit lessons a few months later and I used to wear that hat all the time. My friends have tons of pix of me wearing it and every once in a while I'd cross paths with some jew who'd get a huge kick out of me wearing it.
I'm not a jew, I've never been to israel, even on a vacation, and I have fuckall to do with the israeli police. I just swiped the hat from a jew kid because I thought it was unusual and he annoyed me.