戍守

戍 = 丶 + 戊 : Sheldon Shrimp (shu) has to guard the border (戍) in the space station's bathroom (Ø4). His garrison (戍) consists of a fifth wheel (戊). He has to stand still in front of it all day and wear a stupid hat made out of a petal leaf (丶).

守 = 宀 + 寸 : Sherlock Holmes just graduated from police school and stands guard in the outhouse. Still wearing his graduation cap and carrying a huge shield, he's protecting the outhouse's art. The visitors are a bit afraid of him, so he thumbs up to show them that there's no danger from him.