Wolf. What a funny question. But I think the answer is that neutered tomcats normally squat to wee, just like a she cat does. However, tomcats will still stand with their back to a tree or anything else that interested them, when they are outside the house, tail straight up in the air, and wee in spurts, which is called spraying. It sounds as if Frankie likes to use the litter tray, but is probably only half squating so that the spray of wee hits the side of the tray. See if you can catch sight of him relieving himself outside, I don't think you would be successful at watching him in the tray, because cats object to being watched in their private moments. Hope this helps clear up the mystery. :-) Schutz.