Ah, the ole' college lecture crash. Back in my days at Penn State, it was from a guy in a chicken suite who randomly pranked lectures in The Forum. He was known, affectionately, as Chicken Man and was eventually arrested for the stunts, fined $300 for disorderly conduct and charged for bringing a live animal into a school building. 

But I digress: This stunt at the University of Delaware is pretty good. Dressed undercover like some college bro Clarke Kent, Superman interrupts a physics lecture. Just watch...