Anybody want a cat?

I am so pissed at all of our cats right now! I say all because I don't know which little S O B did it but one of them (or maybe more) has been pissing in O's car seat and the other convertible seat. All 3 are neutered, but our sitter has 4 cats and sometimes her cats will sleep in O's car seat. I don't mind but the smell from her cats must have made my cats feel the need to mark their territory. Thankfully it is just piss and not spray. There is a difference, albeit slight, but there is a smell difference. In my opinoin, piss smell is easier to remove than spray. So I tore apart both car seats, washed the covers and scrubbed the straps. If I EVER see another cat in those car seats again, it will be one dead cat. I love my cats but this is absolutely ridiculous!!!!!