I had a boyfriend back in Brussels and I stayed in his attic (which was gorgeous btw). We'd already had a few fights here and there on our 'honeymoon' to Vienna and our relationship was already in tatters and beyond repair and I was prepared to dump his no-trusting a$$.
We had a fight one night and I couldn't take it anymore so I packed up and left his apartment at 2 am and was out on the road by myself on a street in a dangerous Arab neighborhood (I don't want to stereotype as they can be a really nice bunch but I have seen them pushing drugs and stuff).
I got a room at a hotel down the road, but realised the next day that I'd left a pouch with €50 in it, and I called him to get it from him. I met him at a bar during the day, where he sat with my pouch laid in front of him. As we'd just had a huge fight, I didn't want to say much to him, so I walked up to him, said "Hey thanks for bringing my pouch" and left.
Once I was a safe distance away from his crazy ass, I opened my pouch to check the contents, and the €50 was missing. I called his thieving ass up and he said since I had been 'treating him like shyt', I didn't deserve my money, and he deserved to keep it.
I was so pissed, I messaged all his friends on his Facebook, one-by-one, telling them what he did - that he stole €50 from me because he thought he deserved it, alerting him to his f***ed-up attitude and telling them to keep their wallets away from him. I then proceeded to un-friend him (but I didn't block him, because I wanted to give him the option to crawl back to me, or to see his reaction of his sorry thieving a$$).
I was so proud of myself for doing that - no one steals from me and gets away with it. I cursed that €50 and hope he goes downE in life.