Gelotophobia, Gelotophilia, and Katagelasticism

Most people have heard none of these conditions, but they all have to do with laughter. Gelotophobia is a fear of being laughed at, a type of social phobia that makes them feel awkward. Gelotophilia is the joy of being laughed at. Katagelasticism is the joy of laughing at others. None are particularly good to have. Luckily these are not common, so have a good laugh and enjoy yourself.