Q: How many AnTir-folk does it take to change a lightbulb?
A: Just one, but the new bulb had better be a halogen fog lamp!
Q: How many Atlantians does it take to change a lightbulb?
A: That depends, which household does it belong to?
Q: How many Dune Coons does it take to replace a light bulb?
A: Three - one to hold the bulb and two to turn the stool, but they need a foreign adviser to tell them it was burned out.
Note: I presume a "Dune Coon" means a 3rd world peasant.)
Q: How many supply-siders does it take to change a light bulb?
A: None. The darkness will cause the light bulb to change by itself.
Note: "Supply-siders" were the force behind Reagan's early reforms, and their economic theories were just like those of Thatcher (only the Thatcherites were more extreme). They believed that if they shifted the focus of government economic policy to stimulating supply rather than demand, the business cycle would be stopped at an agreeable point and inflation would be permanently whipped. Obviously, it didn't quite work out that way.)
Q: How many Ann Arborites does it take to screw in a light bulb?
A: None, they just start a "Coping With Darkness" support group.
Note: Ann Arbor is a where, not a who. It's the home of the University of Michigan, which has a fairly liberal reputation.)