I recently heard from one of my friends that her cat often sprays even though he is neutered. I didn't realize males did this
after they were neutered. The only time either one of my cats did it is right after I had bought Sammy a new bed, he sniffed it, then sprayed on it. This is prior to me bringing home Romeo. I don't know why he did it. I hope that Joxer will stop doing it though!