In 2008, the Boston Celtics won their first NBA championship Larry Bird led the team in 1986. Facing off against their bitter rivals in the Los Angeles Lakers, Boston won in six games to clinch the title. In that pivotal game six matchup in Boston, Celtics CEO Wyc Grousbeck detailed his interaction with New England Patriots head coach Bill Belichick on WEEI Radio's “Extra Sauce”.

At halftime, the Celtics held a 20-point lead (23 to be exact) and Grousbeck sought out the Patriots coach:

“I go Bill, ‘What do you think?’ and I was thinking he would calm me down because we could have won the championship that night, or not if we blew it,” Grousbeck said. “If anyone is going to give you the party line, ‘One play at a time, do your job’ it’s going to be Bill. I looked to him for that and I said, ‘Bill, what do you think?’ He goes, ‘Are you kidding me? You’re the bleeping world champions. You can celebrate right now.’ I was like, ‘I just got jinxed by Bill Belichick.'

Luckily for Grousbeck and the Celtics, the team would go on to have a great second half and would end up hoisting the Larry O'Brien Trophy for the first time in over two decades, with the Patriots' coach responding by buying everyone drinks:

“He bought a round of tequila shots for the entire bar, the entire club and we beat them by 30. I love Bill,” Grousbeck said.

If anyone knows anything about winning championships, it's Belichick who has six Super Bowl wins (three at the time).