Naefearjustbeer,
This is a good point, we say 'black lab' as that is the closed "normal" thing we can relate to. But, other than the black, there was really nothing lab-like about it, was there?
I inadvertently walked a wildcat -and I don't mean a feral cat- into the corner of a deer-fence. When it decided enough was enough it came out growling and hissing like a Whirling Dervish made of fur, teeth, claws and yellow eyes. I'll never forget those eyes!
It certainly shook me out of happy-cuckoo-land before it vanished into thin air!