Fear in a dangerous situation is normal. Phobias, however, go beyond normal fear and are irrational. A phobia is an irrational fear associated with a certain stimulus like elevators, needles or animals. Many times, the intensity of the phobia will vary greatly from person to person, but all forms of phobias can be treated. Can you identify what the phobia is known as. This is a list of the most common phobias.