Heh, that reminds me of a joke I heard...
Once upon a time, a female brain cell ended up in a man's brain. She looked around, but it was totally empty. "Hello...?" she called out, but no answer. She wandered around, intermittently calling out. She decided that she was awfully lonely, so she yelled out at the top of her lungs, "HELLO!?" Then, she heard a faint voice... "Hello! We're all down here!"