I close a business three nights a week and a HUGE pet peeve of mine is when people just will not leave when we are closed! I will let them know ten minutes to close, then five minutes to close, then I yell "We're Closed! Get Out", then I shut out the lights on them but they still will not budge. What makes it even worse is that many times they are not even conducting business- they are just standing around talking to each other. And no, this is not a bar... it's a library!