I've had people throw trash at me while I was waiting for the bus. Steal my laptop while my girlfriend was distracting me. And honk at me to scare me.
The best things that have happened are when people stop and compliment me on walking around with a cigar.
Oh, and it's just group mentality. When you have a lot of kids out joyriding they will cause trouble. I had some chicks yell "Hey Sexy" at me tonight. It's just one of those things people do when they're out. I used to ride around with my friends, stop places, run out, and make fireballs on the side of the road/in parking lots with non-dairy creamer. We never messed with people but it really depends, I mean look at what happened to those college students who "role played" as prisoners/guards. Group mentality can really drive people to things they would never do on their own.