About 10 years ago, at the rink. I am a figure skater and was changing from my street clothes to my skating clothes, which means down to bra and panties. The room was full of young girls (and their mothers), teenage girls talking over me, girls and women coming and going, all in various stages of undress, and nobody paying any attention to me or even noticing me. I remembered a "passing" thread on a TS forum and started to chuckle. I guess I have been on this side of the fence that I don't even notice.