Einstein has started spraying! Well I'm pretty sure it's spraying - when he goes for a wee he squats down but this is standing up with his tail twitching - it also smells quite strong. I'm trying for the life of me to work out why he's suddenly started. I know that he occasionally sprays in the garden but I also know that cheeky (next doors female cat) scent marks quite a lot in the garden, so I put it down to him being territorial and 'reclaiming' the garden. However this morning he sprayed on the wall in our bedroom. He was doing his usual morning shout - which usually means he wants to be let out (the cat flap opens at 7:30am automatically but he can be an impatient bugger) - but he then jumped on top of the Chest of drawers and sprayed on the wall. I immediately wiped the wall down with special biological pet mess cleaner, but I'm at a loss to work out why he's suddenly started He was three in March and was neutered the minute he hit 4 months (earliest the vet would do), so I assume it's not hormones - I'm just baffled as to why he's suddenly started and concerned that this has happened elsewhere and I've just not noticed. Out house is being renovated so lots of rooms are in disarray and If he did this when we were out, we may not ever know. I have their vaccinations/6 month check up booked for Friday this week so I will of course ask the vet in case there is a medical reason - But in everything else he's acting totally normally - like the same loud, clingy slightly neurotic fuzz ball he's always been.