You should not make fun of people's mental difficulties.
Rick is in class watching John who is developmentally challenged struggle to solve a math problem on the blackboard.
Rick wants to make a comment to John.
"Rick yells out loud towards John ""Hey Johnny, you can do it buddy just concentrate!""."
"Rick yells to John ""Hey John are you a moron or something?"" and begins to laugh loudly pointing at him."
John feels extra confidence from being cheered on to do better and concentrates harder on solving the problem.
John is embarrassed and recoils in horror at Rick's comments, terrified what everyone is thinking.