Pippin, our blind kitten, growls at noises or someone knocking at the door. I've seen him charge down the hallway like a little Hummvee, ready to kick some butt, growling the whole time. Of course I'm laughing at him and the other guys just look at him and shake their furry heads!
And TigerTiger also likes to test out the litter boxes right after scooping, sometimes before I get the lid back on! Maybe its the scooping noise that reminds him he needs to go! Or maybe he's just doing a quality check to make sure my work is adequate.
Their are goofy, but, we love 'em