I was reading an interview of David Sedaris in the October 2013 (I know) edition of Writer’s Digest and he mentioned a conversation he had with a woman at one of his book signings:
“I heard on the radio that you were going to be here. Normally I take my bra off and it’s off for the night. I put my bra back on for you.”
He asked the next woman in line, “When you take your bra off, is it off for the night?”
“Oh, hell yeah,” she responded.
Hell yeah indeed. And it made me think how common it probably was. It’s like the lingerie equivalent of the off-duty sign on a yellow cab.