answer:I did, and a good thing, too. I trained my sons to put the newly lost tooth in an envelope addressed to the tooth fairy, so I wouldn’t have to feel around under the pillow for a single tooth that could wander anywhere; an envelope would be easy to feel for. After the swap, I actually put the envelopes—tooth and all—into a folder in my filing cabinet under T. But one time a tooth came out kind of bloody, and I rinsed it in the sink. Whoops, the darned thing slipped right out of my fingers and went down the drain. Quick-quick, I made an excuse and went to my filling cabinet, where I grabbed a random envelope from the Tooth folder, ripped it open, and returned a tooth to my son. Catastrophe averted. If he ever caught on to me, he never let on.