Who's Been Eating My Porridge?

Little Bear won't eat his porridge.
"No porridge! No porridge!" he cries.
"All bears cat porridge!" his mother replies.
"And if you don't eat yours, we'll give it to
Old Scary Bear who lives in the woods."

Little Bear doesn't believe there is a Scary Bear living in the woods. But someone is eating the
bowls of porridge they leave outside the bear den ...