Mother's helper

Little Susan was mother’s helper. She helped set the table when
company was due for dinner. Presently everything was on, the guest
came in, and everyone sat down. Then Mother noticed something was
missing.
“Susan,” she said, “You didn’t put a knife and fork at Mr. Smith’s
place.”
“I thought he wouldn’t need them,” explained Susan. “Daddy says . . .
he always eats like a horse!”