FB related - I know I know.
Young, trendy, London type people I went to school with posting pictures of their trendy London night out. They have obviously stopped to chat with a couple of homeless men, one playing a guitar and taken pictures of them all singing along. And then pictures of the second man, who has wet himself. Cue comments from all of them about how hilarious it is and gross.
Aibu to think that is just awful behaviour and think its disgusting to humiliate this man.