Had problems with this when I first adopted my babies but settled after a couple of months. It's not happened in six months. Went away for two nights and had two people coming in to see to them and play with them. (Cats don't know either of them well). Got lots of affection from the when I got home last night: came down this morning to a wet patch on the sofa. Never had this when I e been away before. Don't understand why they've done it when I've come home.