A Bronx man was stabbed on top of his skull with a cleaver during a brawl in Harlem on Tuesday and walked it off. The man seemed unfazed by the blade, which left him a bloody mess, according to a widely shared Instagram video of the gory aftermath. The clip shows the 36-year-old man talking calmly and not aware of his blood-drenched undershirt and the protruding knife. “He looked like he didn’t even feel it,” said one witness.