Q: How Many managers does it take to change a lightbulb??
A: WE've formed a task force to study the problem of who bulbs burn out, and to figure out what exactly, we as supervisors can do to make bulbs work smarter not harder.

Q: How Many testers does it take to change a lightbulb??
A: We just noticed the room was dark; we don't actually fix the problem.

Q: How many developers does it take to change a lightbulb??
A: The light bulb works fine in my office.

Q: How many Microsoft engineers does it take to change a lightbulb??
A: None, Bill Gates will just redefine Darkness(tm) as the new industry standard.