Bones, Season 7

Booth:
Sweets, just get on with this so we don't have to look at that thing.

Sweets:
[surprised] What do you have against a cappuccino machine?

Booth:
This is a diner. I come here because there is no cappuccino machine. [Sweets looks at him in bewilderment] [continues ranting] And some things, they need to be sacred, right? Preserved. All right? In this country, there is a line between coffee and foamy crap. And when that line gets blurred..people, they just become animals.

Sweets:
You ok?

Booth:
[raises voice] No! No, I'm not ok! I'm not dunkin' my donut into some cappuccino. [other customers start looking at Booth] That's not why I joined the Army. [Sweets is looking very embarrassed and puts his hand on Booth's shoulder attempting to calm him down] I didn't join the Army for that.

Sweets:
[sheepishly grins at the waitress] I'll take two regular coffees, please. Thanks. Two black.