The ‘knockout game’ can be negated by a corresponding ‘double tap game’ response.
Young and not-so-young black folks (particularly males): don’t be surprised if you see us white folks doing ‘Napoleon’ impressions as you draw near.
Reaching with our hand into a breastpocket. Or maybe a hand darting to the hip. Or into a waist bag. If you go ahead and swing, you’ll be on the ground doing your ‘Treyvon’ impression.
Just sayin’, blood .....