Maybe it's just me...

but I kinda feel like if you're legitimately the second person on line then you should be at or at least broadly in the vicinity of the belt and not standing around staring vaguely into space some 20 feet away. Indeed, I would go so far as to point out that most people have already begun emptying their cart onto the belt by the time the person in front of them has checked out, thus further reinforcing the image of "A person standing on line - DO NOT CUT" that they of course want to project.

Honestly, my mistake was in replying to her in the first place. She damn well knew she was full of shit, she wasn't going to improve by being told.