外贸

外 = 夕 + 卜 : There's a hole in the wall of the airplane's bathroom (ai4), and from outside (外), a bat (夕) wants to enter. Willy Walrus (w) is very afraid of bats, so he does his best to hinder the bat from entering with a voodoo staff (卜).

贸 = 卯 + 贝 : Mahatma Gandhi (m) is negotiating with a rabbit (卯) and a crab (贝) at a world trade summit (贸) in the aorta's bathroom (ao4).