I feel like I am constantly correcting my 5 1/2 year old son. He picks his nose and eats it, in any setting. He still puts a lot of toys, etc in his mouth and sucks on his fingers, bites his nails, picks a his fingers, and snorts up snot. All of these things drive me crazy and I feel like I am constantly telling him to stop doing something. I don't want to be so negative all the time but I feel like all of these things need to be addressed. I don't know how else but to ask hi to stop when I see him doing it.