Pick Pockets in tourist areas
Pick Pocket is a classic problem of every single country. In Spain you can expect it more often in big cities. where there is a bigger number of tourists since most of them carry a lot of money they are easy targets. Make sure you pay attention to your belongings in crowded places. When someone asks you information or engage in a conversation with you. Pay special attention to public transportation since sometimes is crowded and is hard for you to notice if someone open your backpack pocket. To avoid problems you should always have your money near your body. Never use back pockets and when you are in crowded places use your backpack on your chest so you can keep an eye on it.