Bit of a setback last night but it was my fault. I shut the bathroom door at night because there is a light outside the window and, as I have no blind up at the moment, it shines through into the bedroom. I usually wake in the night when Jaffa gets up (usually around 4.30am) but last night I didn't wake up until I was woken by the sound of cat peeing! I am very atuned to that sound! I tried to work out where it was coming from, but knew it was too near to be either of them in the tray. It was Jaffa spraying the closed bathroom door. He could have been doing it because I'd blocked the front door and the cupboard next to it (both having been used before) and he was just working his way up the hall, but the more likely scenario is because he couldn't get into the bathroom. Even if he had planned on using the hall, I think the open bathroom door would have diverted him. I won't make that mistake tonight and will make sure he can get to the tray in the bathroom.