Because money doesn't grow on trees.
He's still there when you get home. What's he say when you tell him to leave? "Na, 'ma stay"
Pay for the pizza and close the door.
Because they grew a part.
He heard it was a growing field.
Better question would be: Why were they in the tree in the first place?
He gets stumped.
Glue it to the floor.
He couldn't grow a pear
CAPITALISM
Because he hates capitalism.