Amy Schumer is denying claims that she stole jokes from other comedians. “I did not steal any jokes and I wouldn't," Schumer told Jim Norton on his SiriusXM radio show on Wednesday. "I will literally take a polygraph. I would never do that. It would be so stupid for me to do that." Fans of comedians Wendy Liebman, Tammy Pescatelli and Kathleen Madigan took to Twitter to accuse Schumer of stealing their jokes.