Or maybe we could give her a little credit and think "hey, maybe she had an accident and spilled something on her only/last blouse /whatever" and was trying to get cleaned up and not lose her job.

Or perhaps one of a million other reasons that she specifically chose to use the "private" bathroom. I can think of a couple of times in my life where I would have used such a facility had it been available.

Couldn't we give her an iota of thought that maybe she was NOT an inconsiderate person?

Steve