The controversy concerns something that happened during the second round of the British Open.
MacIntyre had been angered when the two-time PGA Tour victor hit a marshal on the shin with a wayward drive on the 14th of Royal Portrush, and then failed to shout "fore" as he sent another tee shot careering towards spectators on the 17th, this time striking caddie Greg Milne's mother, Stephanie.
MacIntyre told The Scotsman that he confronted Stanley as the two, who were also playing with Andrew "Beef" Johnston, were coming up the 18th hole on Friday.
"We're shouting as it's coming into the crowd and he's just standing watching it", MacIntyre said of the tee shot on the 17th.
Stanley simply stood and watched his wayward shots. The American says that while he didn't shout fore, he felt that with the number of people who did, it was really a nonissue.
"It hit [caddie] Greg [Milne]'s mum". So I told him how it was. "He didn't really like my response". "No one gave me an indication that I did". It was straight into the crowd. It was in the crowd from the word go. And we expect them to shout "fore". So I don't feel the need to be schooled on the rules of golf or what to do when you hit a shot off line.
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Kyle Stanley has defended his actions on Friday at The Open. "Aye, there were harsh words", MacIntyre said. "It wasn't too pleasant. When you get up there, you ask, 'Is everybody OK?' And that's what I did". "He didn't take it well at all".
There is no video evidence to prove it either way, but Stanley insists that everyone knew the ball was coming and that the hit came from a bounce and not from mid-air. "To me, it's kind of a non-issue". I'm not sure why [MacIntyre] chose to make such an issue about it.
"I saw what he said last night", Stanley said after his third round. I had my wife in the gallery and my coaches.
This particular shot one-hopped and struck a woman on the hand. He suggested that perhaps MacIntyre use a bit more caution when airing grievances.
But Kyle Stanley said he had explained both situations to MacIntyre when they talked, and questioned why he had decided to make such an issue of it while playing down the idea that it had been a "heated" discussion.
"To paint somebody in a bad light, not playing within the etiquette of the game, you've got to be careful when you do that". When you tell your story, you've got to make sure you add all of the details.