When the Mad Hatter gets caught peeking at the March Hare's mail, Hare sets a trap by asking Hatter to pick up a tempting-to-open, but booby-trapped box. Two packages arrive, and Mad Hatter succumbs to temptation and opens one-but not the rigged parcel. Even so, the package turns out to be just as good at teaching Hatter a lesson about respecting people's private property.