Physics Lab Quote

In Physics Lab, a 200-person lecture, on Tuesday:

Professor: If someone came to me and said that there is an invisible dragon in my garage, what can i do to prove it doesn't exist? Student: You can have a knight in shining armor enter the garage and the dragon by its very nature will be forced to fight it.
Original work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License | © Eric Garrido