Seeing people be rude to waitstaff who are busting their ass to take care of their tables. I remember doing that kind of work and feeling angry at myself for letting those jerks make me feel that way.
Seeing the very young panhandlers at the intersections. Life is hard and times are tough. But your young, get one or two menial jobs until things improve. Join the military. Anything is better than panhandling when you're that young.
Hearing about providers who don't take care of their guys, and the guys who don't take care of their providers. Come on now, we are all in this together!