It sounds like Cirrus just happens to have projectile pee At least he's in the litter box - One thing you might try is getting a big rubbermaid container, cutting a hole for the "door", and placing the litter box in the bin. Then any leaked urine would be in the bottom of the bin, not on your carpet. I think some cats just pee in a straight line like that. Bassett tends to pee like that sometimes too, but so far it's never leaked out. Since he's not going OUTside the box, I think it may not be a behaviour problem. But I'm no expert. I hope you find a solution, though!