Grandparent to James: James, do you think Clover the Goat might have a baby?
James: No, she can't be pregnant. We got BJ fixed, and you have to have a broken boy goat to make a baby.
Mommy, to a very sad and hungry and tired James: James, please only eat one grape at a time. You might choke otherwise.
James: No, Mom, I promise I won't.
Mommy: James, you don't know what might happen, it would just be an accident.
James (very sad voice): But MOOOOOOOMM.....I know EVERYTHING!!!!!!!!
True. Very true.
Also probably good practice for the teen years.