Warrior Take-out

I have, here on the desk beside me, a take-out cup from the Genghis Grill. If you're unfamiliar with the restaurant chain, all you really need to know is this: They're a choose-your-own-ingredients stir-fry place with a Genghis Khan motif, so their branding tends to focus on warrior imagery and puns on the word "khan".

Case in point: my carry-out cup. It has the Genghis Grill logo on the front, of course. Then, on the back, it offers the following... um... proverb? Slogan? Anyway:

Warriors Don't Sip
THEY GULP
I have two issues with this:

1. The techical term is "quaff".
2. How do straws figure into this, anyway?

In their defense, I imagine that using a cup with a plastic lid and a straw does make you rather less likely to spill your soda on your horse while you're riding into battle...