Former world number one Jordan Spieth, like many athletes, has no patience for over-eager fans attempting to get an autograph.
Spieth was handing out autographs after his practice round at Pebble Beach on Wednesday when another group came up and wanted him to sign their items.
The 23-year-old two-time major champion refused to sign things for them, and the fans turned nasty.
Spieth said one of them "dropped an F-bomb in front of kids," so he confronted the "scums".
"I felt the need to turn around and tell them that that wasn't right," Spieth said ahead of his fifth start at the AT&T Pebble Beach Pro-Am.
"And couple of them were saying, 'You're not Tiger Woods, don't act like you're Tiger'. I mean it's just like, whatever, guys. You're still trying to benefit off me and I'm not even Tiger Woods. So, you know, what's that say about you?"
"I'm not appreciative of people who travel to benefit off other people's success," Spieth continued.
"I enjoy signing and sign for kids whenever we get the chance. And when these guys have these items that you've already seen online and people ... our team keeps track of that kind of stuff.
"And these guys that just have bags of stuff to benefit from other people's success when they didn't do anything themselves. Go get a job instead of trying to make money off of the stuff that we have been able to do. We like to sign stuff for charity stuff or for kids, and if you ask anybody universally it's the same way."
Spieth added: "When you see guys that follow you around the entire round, they're saying afterwards, 'We're huge fans.' A lot of other people did follow the entire round and so I want to make sure I sign for them, if I didn't get them out [on the course].
"So I was just a little frustrated at the end and I didn't appreciate the language that was used and ... just some scums that just, it just bothered me."