Coming from South Africa, I was really petrified when a group of men came towards me with most of their faces covered. I almost screamed and ran away thinking they were a group of thugs about to attack and rob me. It took me about 3 months to get used to the idea of being able to walk around, leave your doors unlocked (within reason) and even leave your car engine running being robbed blind. Still am not used to the non western foods though.