Reminds me of the story of some young men who tried to mug an old man in Central Park back in the early 70s or late 60s. They found out the hard way that the old man was Jack Dempsey who wasn’t in a merciful state of mind.
Dempsey used to tour and fight exhibitions taking on all comers. A number of misguided souls got in the ring with Dempsey thinking he would take it easy on them. They were dead wrong. Or almost ended up dead as Dempsy remorselessly stalked them and punched them out.