I was waiting for a cab @ 7:00 am and Muhammed Ali was waiting for his limo downstairs/outside at O'Hare. We talked for about 10 minutes (what about, I don't recall) until his entourage and girlfriend at the time Veronica Porsche came outside from the baggage area.
I found him to be very perseptive and friendly. I remember that I was surprised at how tall and large he was in person (I'm 6'-4" and felt small standing next to him)
A few weeks later he lost to Leon Spinks.
Never thought to get an autograph.