Teaching manners!?

Today I was reading a book about manners to Curran. It's a "Lift the
flap" book and I was having him guess the correct response to the
different scenarios. First there was "Do you want peas for breakfast?"
and the answer, of course, is "No Thank You". Then there was "You
broke your sister's toy." The answer to this, according to Curran, is
"I don't have a sister."

But the best was "You burped" to which Curran said, "Good One!"

That's my boy!!!