It's not every day that you see an alligator in the wild in Michigan. It's probably even less likely for a city worker to find one swimming in a sewage lagoon but that's exactly what happened recently.
A Central Michigan city employee recently scooped an American Alligator out of a sewage lagoon after he spotted it swimming around...
Swimming in water where there's a chance there could be alligators is risky. Swimming in water where a sign reads "NO SWIMMING, ALLIGATORS" is just flat out stupid.