Dogs, spitting cobras and Siouxsie don't mix, while Simon teeters on edge for a mamba.
A huge black mamba is trapped inside a dark roof; a dog is sprayed in the eyes.
Simon mud-wrestles a mamba; a cobra hides inside a toilet; a whip snake loses its tail.
A black mamba nearly bites Sioux; a spitting cobra bites a girl while she's sleeping.