Red vs. Blue, Season 5

Sarge:
The Blues never sleep! They're too busy plotting to destroy our way of life! That's how you can always spot a Blue, Donut. They're always the ones conniving and scheming. Sometimes they do both! I call that... schenniving!

Donut:
And you know what else? You can also tell they're Blue because of their Blue armor!

Sarge:
Yeah, that too. You know, at first I thought this cave was pretty dismal. But it's amazing how a couple of Blue corpses can spruce up the place! Make it feel like home.

Donut:
Yeah, we could hang a couple of drapes, get some wicker chairs! Oh, this place will be fantastic!