Perhaps his most celebrated stunt was his bogus feud with Jack Benny, then the country’s top-rated radio comedian. It started casually enough. Allen had made a humorous remark about Benny. Benny, sensing the possibility of fresh material, picked up on it. Soon it escalated. They would appear on each other’s shows to trade insults. “You wouldn’t dare talk to me like that if my writers were here,” Benny once said.