Naturally after engaging in one of these activities you and your companion might want to grab a drink or a bite to eat. That's when the trap sets in. See set up all around the touristy areas are businesses whose sole job is to lure in the unsuspecting visitor for outrageously priced food or trinkets of questionable value. Of course it's easy to avoid buying a $300 Yankees cap or a $20 "cashmere" scarf (actual retail value $.35) but it's not so easy when it comes to food services. One can easily find oneself paying $8 for a gin and tonic that has less gin in it than the average bottle of Evian if one's not careful.
In such a situation it is imperative to do three things.
A) Drink every last drop of your overpriced piece of shit drink. This will enable you to make up for as much lost buzz as is possible
B) Tip poorly. Whatever house policy is the bartender still could have poured you a stiff one if she were a decent person. Never leave a good tip for a horrible drink.
C) Get the hell out of dodge. As soon as you're done sucking the last molecules of alcohol from the bottom of your glass just leave. Go at least 10 blocks before entering another bar just to make sure you are clear of the TT area.
Of course none of this applies to bars you've been to before and know are good, but rather to the times when you feel like going into that place you've always passed by but were vaguely interested in. Sometimes it's worth trying in, but you must always be aware that it's quite likely to be