Former world No. 1 Luke Donald had to dodge a charging baboon before grabbing the lead at the Nedbank Challenge in South Africa on Friday.
The Englishman missed the course record by one shot after sinking nine birdies to open up a two-shot advantage at Sun City's Gary Player Country Club, but is likely to remember his round for an unwanted visitor on the 13th.
As he prepared to hit an iron, a baboon stormed the fairway and headed directly for him.
Donald moved away from the ball and allowed the animal to pass safely before composing himself to hit a good shot onto the green and sinking his putt for birdie.
"It was a fun day," Donald said.