Name a time you were happy for accidental nudity

One day, decades ago, when I worked at a government office and one of the women I worked with came in wearing what looked like a men's double-breasted suit -- but with no shirt or bra underneath, just the suit. A fashion statement, I guess, but anyone sitting to the left of her was constantly being flashed by her bare breast as the coat sagged open constantly. Made for an unusual work environment that day.