Demotivational Poster: Silent Night?

I’ve never understood why it was a silent night. In the words of my alter-ego, Goober…

Noisy Night, Noisy night,
Sing dis song wif all your might,
Staring at the baby dere,
Wond’ring why him has no hair.
Cows and sheeps make noise,
So-o do baby boys

*to the tune of Silent Night