son peeing on mama!!
One of our Min-Pins can't be let outside when his mom goes out to pee: he will go up to her while she is 'busy', lift his leg & pee on her! Any idea why he does this? He doesn't do it to his papa or his big female pal the German Shepherd! Also- though all are neutered- the tiny 8 lb. female Min-Pin will sometimes go up to one of the dogs (or us!) & put her butt in their faces ... or our face! The vet said she might have had a bit of ovary tissue left after being spayed & still may have cycles occasionally though sterile?