So, I don't live in a house by myself nor with my girlfriend, nor does she live by herself. And I feel like a lot of people are in this situation. How do you keep the world of housemates or next door hotel/motel neighbors from hearing the loud loud (we're loud) loud screams of laughter? Neither of us are too fond of gags, though handkerchiefs have worked in the past. But definitely no ball gags or anything.