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According to statistics, about 10% of the population suffer from various kinds of phobias. Some of them are well known, such as the fear of enclosed spaces, or in other words [acrophobia|afraid of|claustrophobia|domatophobia|frightened|scare|suffer] or fear of heights, which is also called [acrophobia|afraid of|claustrophobia|domatophobia|frightened|scare|suffer]. However, there are also completely unusual and strange fears. For example, have you ever heard of anyone who is afraid of … snow? This kind of fear is called chionophobia. Probably, people who are [acrophobia|afraid of|claustrophobia|domatophobia|frightened|scare|suffer] of small soft white pieces of ice, falling from the sky, prefer living in hot countries. Another unusual fear is a fear of houses or being in a house. It is called [acrophobia|afraid of|claustrophobia|domatophobia|frightened|scare|suffer] (also oikophobia or eicophobia). So, if someone has such a fear, should they live in a tent? Tetraphobia is another strange fear, which is, actually, considered to be very rare. People suffering from it are [acrophobia|afraid of|claustrophobia|domatophobia|frightened|scare|suffer] things in the amount of 4 pieces. Have you heard of any other unusual phobias?