How many [X] does it take to change a light bulb?

Make that hold the sheep down, not hole.

Althogh holing a sheep down would work in the same context, I guess. Not that I think a lot about holing, or holding, or any other action involving intimacy with sheep.

Goats, maybe. Not sheep.

A mordant classic, from the early days:

Q. How many Vietnam-era generals does it take to change a lightbulb?

A. None. They can see by the light at the end of the tunnel.

Q:How many Straight dopers does it take to screw in a light bulb?

A:(insert clever answer here)

A: Lightbulb?!? Cite!!!

How many Catholic elders does it take you change a lightbulb?

Change???