How would you feel if the lodger in your house has loud, noisy sex? Last time this happened I was having a new heating system installed with installers all over the house but that didn't put him off. I first thought one of the tradesmen was watching porn but then discovered it was him. I work from home so don't enjoy hearing this. What would you do? I am minded to serve one months' notice since our contract says either party can end it "for any reason at any time".