Jack-Stalling
When you're about to do your business and some idiot decides to use your stall like it's their own personal throne.
I was about to finish my business when someone else came in and started Jack-Stalling like it was a competition.
You're halfway through your dump and someone else decides to Jack-Stall you.
I was doing my business and the next stall decided to Jack-Stall me like I was in their way.