誤工

误 = 吴 + 讠 : Recently, mission control had an advertising column (讠) set up in the space station's bathroom (Ø4). On the column is written that interracial love is WRONG (误) and should be banned. To protest this, Willy Walrus (w) and the water buffalo (吴) show their love for each other by having a shower together in the space station's bathroom.

工 = 二 + 丨 : Mnemonic symbol: a steel beam, since 工 looks like the cross section of a steel beam.

Gitta Giraffe (gu) is working a shift in front of the engine ((e)ng1). Her job is to melt dinosaur bones (丨) so that they can be disposed off easily. To melt the bones, she is shorting a huge capacitor (二) with a steel beam (工) which consequently heats up to a bright glow. Using the glowing hot steel beam she can melt the dinosaur bone easily.