Expecting all public transportation to be on time
Even in the most punctual of countries (we’re looking at you, Germany), public transportation is often derailed by construction, accidents, union strikes, and unexplained delays. In addition, the current refugee crisis has led to borders and highways throughout Hungary, Austria, Germany, the Netherlands, and Sweden opening and closing unexpectedly, trains stopping, and surprise passport checks delaying travel. Check government websites and speak with travel agencies for updated information. Pro tip: when you’re planning your travel day, make a list of at least two backup connection options in case one leg is off schedule.
Not trying the local hangover cure
Centuries of brewing beer, bottling wine, distilling schnapps, and steeping liqueurs mean centuries of hangovers. Ask your bartender or check out these suggestions (or these) for the hair of the "chien," "hund," "cane," or "perro" to match its international counterpart.