It's wrong to call your friend autistic.
Billy is at the mall with his friends when one of his friends knocks over a display and frantically starts picking it up.
Billy wants to make a joke about the situation.
Billy starts mocking how clumsy his friend is and makes a joke about him being drunk.
Billy calls his friend autistic while flailing his arms around to mock him.
Billy and his friends laugh about the incident and no one takes it too seriously.
Billy notices a nearby family with a child with autism and feels bad about himself.