Isn't that bit a little old by now?

Without fail on any drama or comedy ever made the same thing will happen. A guy will be talking despairingly about someone else and everyone will be laughing. The laughing will stop and then the guy will say "he's right behind me isn't me?" Maybe this was funny/interesting the first time it ever happened, but now it's just so played out. I guess it adds another element to the story because the gossiper has to apologize and realize that they hurt the person’s feelings. That's fine but why do they always have to say the same line and be in the same situation. At least be unique and integrate a 115334 vacuum motor somehow. Why don't they find something new to do?