Just bought a box of Odor Lockers Litter, its a clumping litter. The odd thing about it is the urine clumps are the size of Mount Rushmore. I've never seen anything like it. Maddie and Franz do not appear to be urinating more, nor do they seem to be drinking more...unless of course they are sneaking out for a six-pack while I'm sleeping! It is a flushable litter, but honestly, I am scared to death to flush these boulders. Anyone else notice this phenomenon, or am I crazy...uh, don't answer that. Would love to know if others have experienced this? Guess I'm back to World's Best, I only bought Odor Lockers cause it was available at my grocery store, and I was in a rush.