I am sorry for the kitties!!! Maybe this boyfriend of your friends has never lived with a cat before. Anyone I have ever known who never knew a cat FELL IN LOVE WITH THEM as soon as they lived with one. Like my husband ( he got me a kitten for christmas ) and he tells me just about every day how much fun a cat can be! If her boyfriend really cares for her he will suck it up, roll up his rugs and give the kitties a shot. At least try all the options. Cat Fancy magazine suggest some products that deture precious kitties from peing in places they shouldn't. Maybe in that time he will come to his sences and realize that It is hard to get angry at a cute little kitties mistake =^..^= !!