Looking For Love in All The Wrong Cages - S2-E9
Factual error: The zoologist tells Gavin that he is handling a deadly coral snake. The snake is red, with black and yellow stripes, which is indeed the coloring of the coral snake. However, the yellow bands are inside pairs of black, and only the black touches the red. "Red touch black, good for Jack. Red touch yellow, kills a fellow." This is a harmless milk snake.