4Timmy, wow, that sounds like my difficult child! Thank you! 
WFEN, OMG, the toenails! I totally forgot! Ggf wanted to do that a few yrs ago. I freaked. I told him he could collect toy cars and snowglobes but NOT toenail clippings. He couldn't see why not. He insisted he would clip behind my back and hide them somewhere. I told him I'd find them and throw them away.
Luckily, it was a passing fancy.
Ew, Sharon. Uh, thank you. LOL.
Susie, what a story! Poor kid.
You're right, I think one characteristic is that when they set their minds to something, they really stick to it.
Thank you all! This has been very enlightening.
