In my brief stint as a hooded video slave, a Mistress once put a pair of very hot nipple clamps on me. This was a place of high protocol. It took everything I could not to scream. Instead I said, "Excuse me, Mistress. Have these recently been on fire?" Of the intern Doms had just sterilized them without letting them cool down. I remember it fondly. We all laughed. But, damn, it hurt like hell.