When I was a boy scout in the Canal Zone (Panama) we camped in the jungle; Camp Chagres. We had an event we called the "Critter Crawl." A small circle, about two feet in diameter was drawn in the center of a larger circle of 25 feet. When the order was given, the kids would drop their "critters" in the center circle. Usually they kept their critter in a sack and kept it a secret until race time.
The critter that crossed the outer circle first was the winner.
But, what surprises were in store for all! Tarantulas, scorpins, snakes, iguanas.....
Make your skin crawl?
...I can't even go there...