What is the worst/cringiest joke that te have ever heard o told?

Mine was when I was working as a Quality Assurance Tech for a pane company two years back. I was being taught about the proof boxes and freezers and all of that stuff, and when my trainer, Johnathan, was going over how the proofers affected the dough and what they did.

So it came to a part where the trainer was like, "See? The pane is rising."

And me, being typical nineteen anno old me, was like "You know nothing, John Dough." Fuckin a' xD