Signs of the Times

My 4 1/2 year old taped this sign to a tree in our yard today. Apparently, he wasn't happy that some of the neighborhood boys were in the tree. So he came inside, printed a sign and grabbed some tape. It reads:

DON'T CLIMB

ON THIS TREE

ALONE TIME

NILS

I guess he has declared the tree to be his (mainly by merit of it being the one he can climb)--and where he has his "alone time."