Lost tooth!

Walter lost another tooth without realizing it until later.  That is the 3rd tooth he has lost without knowing it.  I think it is because they get really loose but he doesn't try to pull them out or let us pull them out.  He has written the tooth fairy a note each time telling her he lost hid tooth (literally).  The tooth fairy is very nice and has left him money anyway.  He has now lost 6 teeth, 2 were pulled by the dentist.