When it comes to the point where you pick on others for no reason,
My friend,
You have a problem.
When you find  that you don't laugh unless someone is  hurt,
My friend,
You have a problem.
When you can't be funny unless you're making fun of people,
My friend,
You have a problem.
When the only time you feel good about yourself is when  you  bring someone else down,
My friend,  
You have a problem.