Driver
How many pessimists does it take to change a light bulb? None - it's probably screwed it too tight anyhow!
Hippies don't screw in light bulbs, they screw in tents.
Technically, just two, but it is really hard to get them to breed in captivity.
None if nobody's looking.
Hunter is a profession. That's like naming your kid Dentist.
A rem job
Because they're bad conductors.