I remember a very clever RODENT DISPOSER.
A stick (ramp) board led to the top of the bucket - turns out, the creature in question would go for bait, the center rod would spin, dumping him in the fatal coolant.
Here in Florida, we have a screen porch that has entries and exits for our FRIENDLY critters (birds, squirrels) but I think this guy (BIG ONE) lives in our foliage. WE DON'T like him...
Can you direct me to it?
Thanks - Brian