I suspect there is some psychology at work here. For example: "its so cheap, I might as well stay until I finish this coffee" Or "I don't want to appear to be

I suspect there is some psychology at work here. For example: "its so cheap, I might as well stay until I finish this coffee" Or "I don't want to appear to be abusing this system, so I will stay and be a part of this place, as other people don't do this"