Toucan
One.
All of them actually . Two to hold the ladder and one to change the lightbulb .
Zero. They don't exist.
A: Virgos don't have time to change their own lightbulbs. They're too busy changing them for everyone else.
A: A gulp. It's like a swallow, only bigger.
Tequila Mockingbird.
Toucan play at that game!