忙于

忙 = 亡 + 忄 : Mahatma Gandhi is in a hurry just inside the anglepod's kitchen. He stole a golden flail from the inner chambers of the anglepod and now flees the monsters and ghosts that are chasing him. Rushing through the entrance with the flail flinging around, Mahatma Gandhi accidentally knocks over a tombstone with the flail and wakes even more ghosts.

于 = 亅 + 二 : Mnemonic symbol: prepositions (in, at, on, to, ...) are what glue the sentence together. Honey is as sticky as glue, so I'll represent 于 by a honey jar.

Yu the Great (于) was assigned to repair the electronics of the space station's kitchen (Ø2), but instead he was snacking honey from a honey jar (于). Unfortunately his capacitor (二) got stuck in the honey and now he has to use a crowbar (亅) to lever it out.