Our immediate family's penny pincher is my 4 year old son. Thelonious is 4 and not entirely clear as to which coins are which, but his love of the almighty dollar is deep and true. In the case of a fire, he'd run back to get his stuffed dinosaur and wallet. He once demanded we pull over on a long interstate highway trip, so that he could check on his money in the trunk. On the rare occasion that he allows himself to be separated from his purse, the reunions are complete with smiles, hugs and tears.
My son and I share the kind of disposition that is automatically sunny upon awakening. He has yet to loose a tooth. The mornings after the tooth fairy visits his sister are nothing short of apocalyptic. Never mind that she is happy to share the loot, promises of candy and ice cream split right down the middle, do nothing to quell his rage. To completely date myself, he's all about the washingtons,.
So far he hasn't attempted any at home dentistry and all his teeth are still in his mouth. I'm just glad he doesn't know that you can sell your blood!