堰塞湖

塞 = 基 + 宀 : Socrates (s) wanted to get rid of his graduation cap (宀) and threw it in the elevator's toilet (e4), but now it is clogged (塞). He'll have to dig up the foundation (基) to clear the pipes.

湖 = 氵 + 胡 : Helga Horse (hu) is doing an experiment just inside the space station's entrance (Ø2). She lets the water out of a water bottle (氵) and it forms something like a ball very soon. Helga Horse then uses her Confucius beard (胡) to create a loop and let the water, through the surface tension, expand by stretching the loop. She wants to find out how far she can stretch to get a little lake (湖).