I've been shouted at a number of times, and honked at once or twice. Someone threw a full water bottle at me once as they drove past, but luckily they missed. Lately, I've been having a hard time trying not to get too pissed off at all the idiots who insist on running in the middle of the bike lane as if it's a MUP, as I'm riding straight at them, when I've got car traffic to my left, and they have a perfectly good sidewalk not two feet away. I just don't get that.