Most people do similar things when they think no ones looking
Indeed. I showed a man my middle finger in the Waitrose car park. I enjoyed it. It did not achieve anything, but it felt good. And I could carry on.
He (and his wife) were total mannerless impolate tweebs though.
I was putting my groceries on the conveyor belt, I had 5 items. They had a trolley load. I started at the END of the conveyor belt, as you do. They, however, piled their trolley load up between me and the cashier, so snuck in infront of me.
I was literally staring at them like
continuously, but they paid no attention.
Really, I blame the Waitrose staff for not being able to hold proper crowd controll over the toffs when they shop. pft! Sorry, off on a tangent. The point being, sometimes you feel so powerless that you cannot really do anything else than lift a finger or two, at peoples backs. 