In the 80's-90's there were quite a few eccentrics here around the lake that had panthers, lions, cougars, alligators and all sorts of exotic critters. There was even a full grown male gorilla roaming the woods for awhile (he eventually "came home" on his own). After a few escapes and complaints from neighbors the county enacted a "task force" and forced these people to either find proper homes for the animals or GTFO.
I have seen (in the past) 2 cougars, a huge white tiger, and one black panther, uncaged and running wild, No BS. And as far as anyone knows, "Wally" (the alligator) is still at large somewhere in Gravois or Little Gravois creek.
Anyone that fished/guided on L.O. in the late 80's-90's surely remembers "Kitty Kat Cove" at the 21mm.