"`Hand me the rap-rod, Plate Captain.' The little waiter's eyebrows wandered about his forehead in confusion. `I beg your pardon, sir?' he said. `The phone, waiter,' said Zaphod, grabbing it off him. `Shee, you guys are so unhip it's a wonder your bums don't fall off.'" - Zaphod discovers that waiters are the least hip people in the Universe.
Change in Earth's rotational speed