Brian Corman and Patton OswaltPatton Oswalt wasn't at Columbia University's graduation ceremony last week, but his jokes were. Brian Corman, the School of General Studies valedictorian, regaled fellow grads with a humorous story about attending a "Physics for Poets" class. One major problem: The jokes were wildly similar to an anecdote in Oswalt's stand-up act, also called "Physics for Poets."

Corman, a political science major, told the story as if it was from first-hand experience. After catching wind of the plagiarism, Oswalt sarcastically tweeted: "Congrats to Columbia University valedictorian Brian Corman! Great speech."

Videos of the speech, given May 16, and Oswalt's routine, from 2006, have been posted online.