A group of people who are commonly mistaken for "small rat like children" (see Harry Smith), due to their less than prepossessing appearance. They are in fact remarkably deft and dextrous, able to tap dance flawlessly and juggle trees. They are also extremely dangerous, able to kill a man from 500 yards in any one of 732 different ways. They can be recognised by their pretentious mannerisms, their avid dislike of all people of Mexican origin, and their aversion to Branston Pickle.
A: "Look at that man tap dancing and juggling trees."
B: "He must be a Harold Smith. Let's give him some money."
A: "Look at that small rat-like child. It's a Harold Smith."
B: "No it isn't you stupid bender."