I am so mad about this. I have had experience of cats all my life and have never known one do this. When we first got our 2 cats at 13 weeks old, they had a terrible soiling habit - weed and pooed where they liked for weeks and I nearly wanted to give them away, they annoyed me so much. But that problem eventually was solved. We have now had them 2 years and since the initial problem was solved, I have only known one of them to once soil (on a child's bed ) but he might have been scared into doing it.
Then, just now, I was in children's room making beds, when one of the cats came in and almost immediately started spraying in a marking territory sort of way on the side of an open drawer. I shooed him out of the house and sort of growled at him to make it clear I was not happy about this.
Now, I have just been looking on the internet to see if I can find out why he did that. From what I can gather it is supposed to be only unneutered male cats that spray to mark territory and the suggestion also was made that cats mark territory indoors if they don't get out much. Well, none of that fits my cats. They are both neutered males and they live almost the entire time outside. They have a cat flap for free access and I hardly see them from one day to the next. So why on earth did this one decide to mark his territory indoors just now? I am sure he can't have been doing it regularly because cat wee smells appallingly and I would have smelt it, wouldn't I?
I am feeling so about this. I have never known neutered males be like this before.