Shocking video shows pallbearers falling into grave —knocking one ‘out like a light’

These mourners faced an unexpected grave situation. Wild video shows several pallbearers plunging six feet into a grave while lowering their loved one’s casket — with a grieving son even getting knocked out cold. The footage shows pallbearers carrying Benjamin Aviles, 66, in his coffin for his burial Friday at Greenmount Cemetery in Philadelphia when…