Floobsession (catfinition) – a cat’s persistent preoccupation with an activity or idea.

In use:  “Papi’s water floobsession drove him awake in the other room. A thump was heard as he jumped to the floor, followed by thundering paws as he galloped down the hall, into the kitchen, and leaped up on the counter with a Cheshire cat grin and a question mark tail.”