lewis only allowed one person to hug him, and that was his beloved mom. Ruiz had no business doing that to him....
Ruiz was a paper champion he was never seen as a serious threat to Lewis and nobody gave him a hope in hell of pulling of an upset. Best scenario for Ruiz against Lewis would be to put on a Henry Akinwande like performance and hold on for dear life and get disqualified. Most likely scenario Lewis KO's him inside 6 rounds. Silly thread that get repeated now and again. I expect we will get idiots years from now starting similar threads called "why did the Klitschko's duck povetkin". Idiotic and pointless.
Some boxing scholars put it down to John's halitosis. Others claim it was the serious B.O. And still others feel he was deathly afraid of the quiet man. I'm still noodling on it.