Never, and not to be "tuff guy" ! I feel you need to experiance all types , pro fighters or white belts! I'm all about the "what if this guy attacked me on the street" thing. I feel I need to be ready for anything . I was going to get in and box with James Toney , it was 10 years ago at least but still ! His handler John Mc Artuher I bevive told me "sun James can't controll his self" I'm like 155 he is 275 maybe ! So I turned that one down still regret it!!!!!!!!!!!!!!!shit shit shit !! !!!! I think it would be good to experiance!!!