There's a great Tyler Durden quote in Fight Club about this.

Narrator : Tyler, you are by far the most interesting single-serving friend I've ever met... see I have this thing: everything on a plane is single-serving...

Tyler Durden : Oh I get it, it's very clever.

Narrator : Thank you.

Tyler Durden : How's that working out for you?

Narrator : What?

Tyler Durden : Being clever.

Narrator : Great.

Tyler Durden : Keep it up then... Right up.