A lot of liquid
So when cleaning out my fish tank for the move into the dorm, I spilt quite. Bit of water. I soaked up all that I could with towels. I laid down the blanket I stole from that time I was in the hospital so that it woulda continue to soak up the water from the carpet.
Some time during the night, kraken peed on the blanket.
This morning, Tesla peed on my bed.
My pets are so helpful.