Making people yawn, sneeze, cough, and pee have been tricks played by kids and teens everywhere for centuries. While getting people to do it does take a certain amount of creativity the effort involved is minimal. Now, getting someone to crap themselves that's a little harder.
Honestly, I can't make this kind of crap up. A woman standing outside of a nightclub decided that pooping in her hand was the best way to handle her number 2 situation. Are you effing kidding me? This will make you think twice about shaking hands with someone you don't know.
In general dog shows are pretty stupid, but I don't mind the part when they are running through stuff and jumping into pools. This mutt was in the middle of one of those obstacle courses when nature called, and when you gotta go, you gotta go.