Having someone do something in front of you that strikes your funnybone is not the same as "taking delight in someone's misfortune". The OP didn't ask for this, nor was their response thought out. I pulled a "best of" many years ago that would have had all viewers watching doubled over, even if I broke multiple bones. (There were no witnesses and I was unhurt. Had there been, I could have faulted no one for their reaction.)