unicorn blood

Today in William's drawing mythological creatures course, he was drawing pixies. When I got there to pick him up, he, Aaron (who is instructing) and I talked about whether pixies drank unicorn blood from sleeping unicorns like little vampire bats. If they did, we figured that it would taste great and that the pixies would pee rainbows. Of course, the pot of gold at the end of the rainbows wouldn't be real gold....