Traveling
Travel to other country is amazing, it's possible to know new cultures, exotic food, different languages, wonderful landscapes and more. But it presents some troubles, such as, the airplane can leave you or it comes late, lose the luggage or documents, and maybe you don't understand what people say when you ask for indications and then you are lost in a big city.
So, try to be careful with the time, your bags and learn some phrases and words in the native language of the country you are visiting and enjoy it.