On lunch break while filming the Mickey McGuire comedies, five-year-old Rooney walked by an open office at Warner Bros. studios, poked his head in, and introduced himself. "'Who are you?' I asked the guy working there. 'My name is Walt Disney,' he said.  'Come over and sit on my lap.' So I went over and sat on his lap, and there was a mouse he had drawn. 'My gosh, that's a good-looking mouse, Mr. Disney.' 'It sure is, Mickey,' he said, and he stopped and looked into space for a minute. 'Mickey, Mickey,' he said. 'Tell me something, how would you like me to name this mouse after you?' And I said, 'I sure would like that, but right now I got to go and get a tuna sandwich.' And I jumped down."  "It's a true story," adds Rooney.