Stan, a trained and licensed plumber, carelessly installed a steam heater in George's restaurant, and, as a result, George was seriously burned when a heater pipe exploded.

Sylvie, a qualified medical practitioner who treated George at the hospital, prescribed an improper medication as treatment for the burn, which aggravated the injury. This required George to undergo an expensive skin-graft operation to correct the condition.

What is the responsibility of Stan and Sylvie to George?

Give an explanation for the tort and what kind of tort it is