The issue, of course, is that we tend to rely on friends or relatives to get around in strange places, and so we stick with them as things go south because we're afraid to get stranded somewhere without the knowledge to get back to where we started.
...Finding out ahead of time what's stupid, and then not doing those stupid things, is a good method to avoid a lot of needless conflict (not to mention emergency room bills!)
...Avoid all three, just like you would at home, but recognize that what you would avoid at home may not be the same as what you need to avoid away from home.
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