Namaste!
Walking along the streets of Kathmandu sometimes you can notice strange strings of lemons and chilies hanging in front of the doors of the houses or shops. These are meant to ward off the evil eye - any sickness or misfortune transmitted by someone who is envious, jealous or covetos. The belief is that a person, otherwise not evil in any way, can harm you, your children, your house, your health and so on, by looking at you with envy and even by praising you, so it does not always have evil intentions attached to it. Strangers, malformed persons and old women are most often accused of casting the evil eye.