-- How many
gypsies
-- does it take to change a light bulb?
None, but you lose a lot of light bulbs.
Note: None because gypsies don't have mains electricity, and
the losing is a play on the larcenous reputation of Gypsies.
You give a Gypsy a light bulb and ask him to change the
hallway lamp, pretty soon you have one less light bulb and
the hallway lamp is still out.
