Conor McGregor punched an old man in the head at an Irish pub over a dispute about whiskey shots.Conor was buying a round of shots of his brand of whiskey (Proper Twelve) for everyone.  They laid out a bunch of shots but one guy turned down the drink multiple times.  So Conor hit him because the guy didn’t want a shot of his whiskey.

WATCH VIDEO OF THE INCIDENT/FULL STORY

Video of Conor McGregor Punching Old Man in Head in Whiskey Dispute

Conor McGregor uncorked a shot to the head of an elderly man in an Irish bar in a dispute over whiskey -- Conor's whiskey -- and TMZ Sports got this video showing the violence. The absurd attack went down at The Marble Arch Pub in Dublin on April 6.