AIBU to be absolutely fuming that my FIL took his mate round to my house to show him our bathroom, without asking us, without telling us until about three months later when he dropped it into conversation?
FIL - "Ooh yeah, John's bathroom looks lovely, he went with the same tiles as you, as liked how yours looked"
Me - "Oh right, has he seen them then?"
FIL - "Yeah I brought him round one day to have a look"
I am fuming!! This is not a one of occurrence of what I think is a total invasion of my/our privacy.