渗沟

渗 = 参 + 氵 : Sherlock Holmes (sh) is horrified (渗) to find that he accidentally emptied his water bottle (氵) over his bib number (参) in the encampment's bathroom ((e)n4), and now he'll have to run the race with a seeping (渗) bib number on his body.

沟 = 勾 + 氵 : In front of the outhouse (ou1) Guy Fawkes (g) drew (勾) a photo-realistic comic (勾) of an open gully (沟) on the floor. The people are afraid to step onto it because it looks so real. They only start to believe Guy Fawkes that it's not as he spills a bottle of water (氵) over his chalk painting.