Even Underwater Divers Are Washing Their Hands
This is kind of a goof, but the point is taken. It's a video of a diver underwater in Vortex Spring, Florida and he's inside a sunken boat, washing his hands at the sink.
He gets extra points for remembering to turn the sink off to conserve water. His mama raised him right!
Technically, he's a free-diver, which is someone who holds their breath underwater for a very long time.