Well, maybe different people who live in different countries on different continents have different ideas of what a bar is. Where I live you don't go to a bar to drink although you usually drink something when you're in a bar.
But then ... maybe you work at a bar? You didn't describe your office.
Because you're being a douchebag who is taking up way more space by having your laptop out and requiring a clearance to help prevent people from stepping into the danger zone where they might accidentally spill their drinks onto said laptop.
"At Caltech, he used a nude/topless bar as an office away from his usual office, making sketches or writing physics equations on paper placemats."http://en.wikipedia.org/wiki/Richard_Feynman
I actually like coding in a relaxed atmosphere, with music on and a drink in my hand. Not crowded, that would suck; but the conundrums that get me all tense and frustrated at work seem surmountable in different settings.
Now, I'm not actually a coder, I just do a job-related script or two now and then; so YMMV.
Well, I can code in my class using my netbook. Helps me skip lousy classes and still get attendance for those classes. I keep my netbook on my lap and I'm a first bencher and never got noticed coz of the bench design :)
My specs:
Acer Aspire One D150 (1gb/160gb) with Ubuntu 9.10
Emacs 23 for editing
Switched to Chrome (5.0.379.dev) from FF, coz the new dom inspector seems to hook right at the bottom of the window like firebug.
Using Balsamiq on the netbook is a pain for new mockups. Not to just view mocks tho.
It seems to be slow to run the Android emulator, but it runs fine raising some exceptions. Tip: click wait and not force quit in the emulator :) also skip eclipse and learn the commands. The only thing you'll probably miss is the auto pkg importer in eclipse (fixing statements by importing pkgs). But that's fine :)
I code in bars all the time... Granted, this is usually on Sunday at 2:00 in the afternoon, on the patio, and with my dog laying at my feet. It's wonderful, very relaxing, very easy to concentrate.
If it's at night (I've done this too), the loud people act like a white noise generator and leave me alone in my thoughts.
Bars aren't for coding, put down the computer.