I changed planes in LA circa 2004 and walking from one gate to the next I passed 2 people who I recognized, one was Erik Estrada, average sized happy dude, walked within arms reach, the other was Tyson, I didn't get within 30ft of him and he scared the shit out of me, he has that intimidating stare down. Plus I had seen him fight numerous times and he just bled anger and intimidation in the terminal.
I couldn't imagine getting in the ring with him, that alone takes balls, I'd be like Jerry Lewis, except crying