Being in a new country or city is exciting and unpredictable. You never know where you will end up and if you are the spontaneous type you will take recommendations from the locals. It is important to not lose your common sense here and avoid shortcuts.
What many tourists forget when they travel is that they don’t know the area. You can be lulled into a false sense of security and end up wandering into the wrong part of town. It’s best to keep a map on you, and ask your hotel or accommodation to highlight the areas that you should avoid.
Never trust a local just because they seem to be nice to you. You don’t want to be caught in a dead end on long awaited holiday.