The bet was for three dollars, but the cost could have ended up being astronomical.

Max Homa, one of the best golfers in the world, was lining up a 5-foot putt Saturday on the 17th hole at the BMW Championship when a fan called out, “Pull it!”

Homa, since he is a professional golfer, drained the putt, and then he and his caddy went in search of the fan. They learned he’d bet $3 that Homa would miss the putt.

The incident follows one last month at the American Century Championship, a celebrity golf tournament, where a heckler shouted during the backswing of Mardy Fish. The fan later said he had laid down a bet on Steph Curry, who was also playing in the tournament and would go on to beat Fish by two points (odd scoring).