A guy from Quebec and a guy from Ontario are fighting over a lantern when a genie pops out and grants them each one wish.

The Quebecer says, "I want a wall around Quebec to protect my culture. Make it about 150 feet high, so nothing can get in or out."

"It is done," says the genie, turning to the other guy. "And your wish?"

The guy from Ontario smiles and says, "Fill it with water."