I wonder if you have any practical jokes you have played on new hunters?

I have one I have wanted to try for years. Buy some Tootsie Rolls, break it into pieces and shape it into elk dropping shapes. When out hiking, pour a few in a small pile the ground. Get the attention of the new guy and say "Here's some fresh elk sign" pick up a couple pieces, and chew them up "They were here about 2 hours ago".