Five six seven eight!
None. They're too afraid of the electricity.
Because he was afraid of change.
No one knows they never keep the house!
None. The light bulb shall never burn out. (OK. It's more cathartic than funny...)
About seven. One to change the bulb, six to sing the song.
Snow White had the excuse of being asleep when she let seven in.
In vitro, in Prancer, in Dancer, in Vixen.