You'd probably want my autograph, because Marcus Allen lived in the condos across the street from my office for quite a few years (during his Raiders era, of course) - we'd cross paths frequently.
I remember laughing with him after he finished complaining to the bank teller (obviously not a football fan) who felt he didn't have enough ID for her to cash a "young black male's" check or whatever it was he wanted to do.
I'll go you one better.... I know his mom and dad.