I was watching C.S.I. the other day. It was the episode where Lady Heather first appears. For those who don't watch the show, Lady Heather owns/runs and Dom/Sub house. Anyways it got me wondering, if a person has a gag in their mouth, How can they say the safe word?? Do they use sign language? What if their tied up to? Is it just unsafe, or is there a way around it? So may questions, and they say TV kills brain cells.