I really do not mind buying her own food

An old couple goes to a fast food restaurant, where they carefully divide the hamburger and fries into two.
A truck driver feels sorry for them and offers to buy his wife his own food.
"Do not worry," says the old man, "we share everything.


A few minutes later, the truck driver realizes that the wife has not had a bite.
"I really do not mind buying her own food," she insists.
"Do not worry, she'll eat your share," the old man assured her.
We share everything. Unconvinced, the truck driver asks his wife, "Why do not you eat?
"Morgue, I'm waiting for my husband to lend me his teeth!"