What happens in Vegas stays in Vegas — unless, of course, someone drops a dime with the drunken details of your bar tab. No wonder Rob Gronkowski was dancing shirtless like a muscular “Magic Mike” at the XS at Encore club on Super Bowl Sunday. According to BustedCoverage.com, which got a copy of Gronk’s receipt, the hard-partying Pats tight end and his posse were served $9,615 worth of booze. What does that get you? A whole lot of Grey Goose, champagne, a $700 bottle of Beau Joie, some Crown Royal whisky, and 14 Fiji waters. You’ll recall that during the night Gronk body-slammed one of his buddies in a move that could have reinjured his broken arm.