Love the show! Mayweather's thumb down sign to his posse was his "Ceaser Gladiator" move. He decided this interloper's fate after hearing the imaginary crowd in his all-too-fuzzy-head chant "Death Death Death!!!!". And what is Mayweather, if not an emperor of the people, thus he was obliged to follow the one true path... thumbs down = beat down.
PS. Please help me on my life long mission to induct Dave Kingman into the Hall of Fame. They must have a special section for towering home run hitters and misogynistic behavior.