I have a male cat that is about 1 year old, who I just got neutered yesterday. Today is his first day of freedom as the kitty Dr. told me to keep him in his cage until this morning. As soon as I let him out of the cage he went straight to the litter box(as would I) and his urine smelled like "cat spray". My question is this, is this cat spray or is it just strong urine smell from not going potty for a day (he is very prissy and will not pee anywhere but in a clean litter box). and will it go away.