It's a matter of a pinion(http://www.merriam-webster.com/dictionary/pinion).
Eric Clapton would absolutely NEVER let an ounce of cociane fall 49 stories out a window onto the streets of New York.
There's a vas deferens.
Two chickens and a goat.
Wing it.
A bird of prey.
A falcon genius.
It doesn't matter how many. They just compliment it and get mad when it won't screw. Edit: Credits to Drougen for making it better.
It doesn't matter