Being such a voracious eater, this one was caught 45 minutes after
setting the trap this morning;

http://www.pbase.com/eldata/image/136464431/original

BTW, they aren't all that "dumb", we had one here sometime back that
would literally perch beside the trap even when filled with bait.
After two 'possums, two skunks and countless squirrels, over a period
of years, we gave up trying to catch it.