Even legends have off days. For Jack Nicklaus, one of the most surprising lessons of his storied career came not from a coach or a caddie, but from a McDonald's Happy Meal glass.
It was the 1988 PGA Championship at Oak Tree National in Oklahoma. Nicklaus, then 48 years old and already an 18-time major champion, found himself in unfamiliar territory: missing the cut. After rounds of 72 and 79, he sat at 9-over-par, seven shots shy of the weekend. It was only the third missed cut at a PGA Championship in his entire career, dating back to 1962. A quadruple-bogey 9 on the 16th hole sealed his fate.
But the sting didn't end there. Nicklaus was working as a broadcaster for ABC Sports that week, meaning he had to stay and talk about the players who made the cut. "The only thing worse than missing the cut is having to stay around for the weekend and talk about those who did make the cut," he quipped at the time.
Then came the real kicker. That Friday night, Nicklaus's wife, Barbara, took their youngest son, Michael, to McDonald's for a Happy Meal. It came with a souvenir glass featuring the Peanuts characters. The next morning, Jack poured his orange juice into the glass and noticed an inscription on one side: "THERE'S NO EXCUSE FOR NOT BEING PROPERLY PREPARED."
The message hit home. Nicklaus, known for his meticulous preparation, had always taken his game seriously. "I would usually go to a major 10 days early," he once said. "I was there working, preparing myself for the golf course and preparing my own game. I took it very seriously." Yet even he had slipped, and a children's toy delivered the reminder he needed.
Nicklaus has shared this story many times, including with a young Rory McIlroy early in his career, emphasizing the importance of preparation at every level. To this day, an exact replica of that glass sits in a cabinet—a humble, everyday object that holds a timeless lesson for any golfer.
As the 2026 PGA Championship approaches, around 70 players will face the same feeling Nicklaus did on Cut Day, May 15. Some will simply not be good enough. But for those who are, the lesson is clear: preparation is everything. And sometimes, the best advice comes from the most unexpected places.