急速

急 = 刍 + 心 : Joan of Arc just arrived at the space station and although she has to go to the bathroom very urgently, she first has to clear the way of a big fluffy heart using a lawn mower.

速 = 束 + 辶 : Susan Saint Bernard tries out a new way of moving much faster in the space station's bathroom. She attached a bundle of firewood to each of her legs, and attached gladiator sandals to the ends of the bundles. This way she extends her legs and increases her speed dramatically.