You should take a look at how some of the boxing greats have done it in the past...

When Muhammed Ali was preparing to fight Sonny Liston (Muhammed was a kid of 22, compared to Liston who was around 40) managed to convince Sonny he was crazy. You see Liston was a thug the guy had been jailed years previous and was not afraid of anyone - but he was afraid of things he didnt understand.

Later, when Ali fought Foreman, Ali had to walk past foremans training area everyday and he never once looked at what he was doing, rather kept on walking.

haha im not sure that answers your question but ive had that trivia since I read Alis biography.