Don’t mess with the best, because the best don’t mess.Thelma Jones, a 90-year-old woman from the east side of Detroit, plans to continue her training after earning her fifth-degree black belt in Isshinryu karate.According to Fox 2 Detroit, she received the black belt as part of her celebration for her 90th birthday. Jones has been training in karate for 50 years, and aims to continue practicing, a