cats looking for something, do you live in a wood structure or is the floor cement? we got one that goes goofy when something is creeping around the attic, and it doesnt matter whats in front of him he goes running head straight up and plows through everything that is in his way.

if there was something under floor, the cat would be digging for it, that or its still PO'ed it got clipped, mine got a bit cynical towards me and did bad bad kitty things, for a while like 6 months

just a thought