Should courts hold that a plaintiff in a risky occupation assumes the risks endemic to their employment? Defendant brought an aggressive dog to the plaintiff's veterinary clinic for an examination. The plaintiff was quickly made aware of the dog's violent tendencies when the dog snapped at his left arm, and requested that defendant muzzle the dog. Defendant did so and the examination proceeded without incident. After the examination, plaintiff removed the muzzle from the dog. The dog immediately turned and bit the plaintiff several times. The plaintiff had been bitten twice before while treating other dogs.