My youngest worked as a server in a bar while she was attending college. This particular bar was hooked up to a restaurant and had an outside patio that was only open when the weather was warm.
So, she was working her shift and was the only server in the bar last February. The opening to the patio from the outside was blocked off with a chain, the chairs were stacked on top of the tables and everything was covered with several inches of snow and ice.
Which seems to have been the equivalent of a sign that of course the patio was open for service. She heard someone pounding on the inside door between the bar and patio (which was locked and had several feet of drifted snow in front of it), went to the door to see that a group and pulled chairs off of the tables. They then screamed at her about the crappy service and demanded to be served NOW!
She told them she was sorry, but that the patio was closed and there was no service being provided outside. She got screamed and cursed at, so she shut the door, re-locked it and went back to serving the customers inside the bar.
The group from the patio then entered the bar and she hoped that they had given up, but no...they only entered the bar to scream at her and demand again that she serve them out on the patio.
This is the snow covered patio with the temperature in the low 20's that was not open!
Fortunately, the bar manager was a pretty no-nonsense sort and she told them they could be served inside the bar or the restaurant or they could leave. They chose to leave.
But what kind of people behave like that???