A bone to pick

At tea tonight:

"You better watch it," said Granny, "I've just found a bone in my fish". I think, in her roundabout way, she was reminding Mummy to check my dinner. Mummy is used to this.

"You're lucky then," said Mummy. "I haven't had any"

"I've got a bone in my arm" I piped up, sure that everyone would be interested. And indeed, Daddy was.

"Where have you got another bone?" he inquired.

"In my other arm!"