師古

师 = 刂 + 帀 : Sherlock Holmes' teacher shows Sherlock one final trick in front of the space station before his training is complete. The teacher shows Sherlock how to electrify a kitchen knife using a defibrillator.

古 = 十 + 口 : Mnemonic symbol: at least on German maps, this character actually resembles a cloister.

Oh no! Gitta Giraffe (gu) found that the golden cross (十) broke off of the cloister (古) in the space station's living room (Ø3)! She skewers a mandarin (口) on top of the cloister so that she can skewer the broken off cross back on to fix it.