So I had my corgi, Brian, neutered when he was 6 months old. About one week prior to the surgery, I witnessed the one and only instance of him lifting his leg to pee. Usually, he would just squat, but for some reason, out in the middle of the yard he attempted to lift his leg. I didn't think much of it, other than that behavior wouldn't develop far as he would be neutered soon. After that one time, I never saw him lift his leg again...
Fast-forward 6-8 months later and then all of the sudden, he starting to randomly lift his left to pee, but not always. Sometimes, this action would occur when he was in the middle of a patch of grass, or sometimes it was up agains a bush or another plant.
He's also started stopping frequently while on walks to mark (sometimes lifting his leg, sometimes not), although sometimes he just pees once during the walk and that's it.
I'm completely baffled. I thought that if the dog was neutered early enough, then they wouldn't develop the typical male behaviors like that. He seems to have suddenly picked up this behavior (and also started a couple agressive fights, but that's another story), and I don't know where it came from. I don't have another dog, and he really only gets to pal around with other dogs maybe once or twice a week. Is this just a common occurance that I never knew about?