Two factory workers were talking.
'I think I'll take some time off from work.' said the man.
'How do you think you'll do that?' said the blonde.
He proceeded to show her...by climbing up to the rafters, and hanging
upside down. The boss walked in, saw the worker hanging from the
ceiling, and asked him what on earth he was doing?  'I'm a light bulb'
answered the guy. 'I think you need some time off,' said the boss. So,
the man jumped down and walked out of the factory. The blonde began
walking out too.  The boss asked her, 'Where do you think you`re going?'
The blonde answered, 'Home. I can't work in the dark!'