屋面

屋 = 尸 + 至 : Willy Walrus lives in the space station, but sometimes he goes out into his small garden shack. Today, something is just wrong, and when he visits the shack's arrival part, he knows why: A ghost has arrived!

面 = 丆 + 囬 : Mnemonic symbol: a spray flask with one of these liquids which make a surface super slippery.

In the anthill's bathroom (an4), Marilyn Monroe (mi) wants to set up a wind wheel (丆) on top of a closet (囬). Just as she tries to fix it she slips and falls down, the wind wheel crashing on the floor. She didn't notice that somebody used a can of non-stick coating (面) on the closet's surfaces (面).