Sure, we all know the basic societal niceties—say please and thank you, don't interrupt someone when they're talking, chew with your mouth closed, let pregnant women and senior citizens have the seat on the bus, etc. But when is it appropriate to stand your ground and overstep those normal “niceties?" Well, according to Reddit , it's when you're quitting. This employee made the decision to himself that he was going to quit months ago. The job was all kids of messed up internally, and he was get…