Doug and Carrie feel guilty over their lack of charitable contributions so they give a hefty donation to an elementary-school library, but are then disappointed when they aren't given proper credit for the gift on a donors' plaque.

Doug learns his dentist used to have a crush on Carrie, which might explain why the root canal he performs on Doug hurts so badly. Also, Arthur offers piano lessons to kids, even though he doesn't know how to play the instrument.