Hi all Haven't posted on here since I can remember when I'm desperately in need of some advice please before I lose the plot altogether. Wasn't sure if this thread belongs here or in the behaviour forum sorry. And apologies in advance for the long post but want to give the full story. We have a 2 year old entire Rottie male called Jag. A beautiful boy whom we love dearly. He shares his home along with our cats/kittens etc. has the run of the house, is trained, walked daily, groomed daily etc. For the past, oh I don't know, 2 or 3 months, he has been marking his territory. This isn't wee'ing but definitely marking territory. When this first started he would do it in the main back room of the house which is the room he would sleep in of an evening as we always kept him separate from the cats at night. Anyway, during the evening he now has the run of the house like he does during the day and he is still marking everywhere. He does it in the day time and night time. He generally follows me around the house as I am his main handler/carer and so long as he's wherever I am, then he won't do it but there are times when for example I am hoovering, or having a shower, or pop out to Tesco and the minute my back is turned he goes and marks, usually on the cats' bunk beds, or over their litter trays. I can be gone from his side for just 5 minutes and next thing I know he's done it again. My reaction after I see the mess is to wipe it up obviously as there is no point in chastising him after the event because he wouldn't understand what he had done that was unacceptable. So I need to catch him at it and then I can stop him before he starts, the problem is that he waits until I'm not anywhere near him and then he does it. What I need to know is if we have him neutered (something we are going to do fairly soon anyway) is will this stop it? I really am at my wits end here and am hoping that neutering will solve the issue. And before anyone asks..............(in case you think we're irresponsible lol) the reason he hasn't been neutered as of yet is because we originally bought him as a show dog, but then just never got around to showing him, he can not escape out garden, and he is always under my control when off lead in the fields etc. He doesn't mount, never has done, and this marking is the only "entire male" behaviour he displays. Would appreciate any replies. Thanks heaps.