Don't Be So Frightened

A woman came to the hospital to visit a friend. She hadn't been in a hospital for several years and felt very ignorant about all the new technology. A technician followed her onto the elevator, wheeling a large, intimidating-looking machine with tubes and wires and dials. "Boy, would I hate to be hooked up to that thing," she said.
"So would I," said the technician. "It's a floor-cleaning machine."