"It's common sense that a Dos Eqis at a mexican themed restaurant would be in a bottle."

First of all, if any restaurant was going to have Dos Equis on tap, it would be a mexican restaurant. I assume that's what you meant.

But, the problem was that I didn't even consider draft beer as an option when I sat down. If you remember, when I looked at the menu, I asked why there weren't prices next to the beers. I was looking for the cheapest "beer" (i.e. not coors light, etc) on the menu. Normally, at a bar with the regular stuff on tap, I would get a Stella. But, I always forget that they tend to charge more for Stella b/c it's "foreign". So, i've been trying to mentally ingrain that into my head and find a domestic draft beer.

Whether it was because I didn't see taps when I was at the bar, or whether it was because i started to think of the place as a "restaurant" when we sat down at table, I don't know. But for whatever reason, the idea of draft beers were lost on me. So, I was choosing from the Bottles listed on the menu. Because Dos Equis apparently comes in both bottles and draft at the restaurant, the waitress had to ask. Instinctively, I said bottle, b/c that's what was on the menu, but my cheapness sense kicked in. Mentally: wait, drafts are cheaper than bottles. let's see what they have on draft. If you notice, I went with a domestic beer on draft, the cheapest of the cheap (uh, I assume blue moon is american, but i could be wrong).

So, it's even more logical that the waitress could confuse my saying "bottle" to go with the water.

Let's take out her question of "bottle or tap/draft" and my "bottle" out of the dialogue. Now you have this:

I'd like a dos equis lager, lager. [pause] Hmm, what do you have on draft?

a normal customer could do that. They see dos equis on the menu, and that's the beer they are going to go with, unless they have something unique on tap.

It's rare that a person would prefer a bottle over a draft, but then ask what's on draft. The only reason they'd do that if they were cheap, like I am. So, even though i said "bottle" right away, I then changed my mind (again, b/c i didn't realize there was an option right away).

And when I ask for water at a bar, i always throw it in after an order of alcohol as "oh, and can I also get a water when you get a chance". Three reasons for this: 1) it's lame to drink water at a bar and I don't want to be mocked for it by either the bartender or my friends 2) I don't want the bartender to think I'm cheap. They work on tips and some people don't tip on water and 3) I don't want to tip for the water, so I get it with the real drink so i can tip all on one event.

This is the way I always do it. This is the way I will continue to do it. And that's the way I did it on saturday (although tipping wasn't an issue w/ a sitdown meal)