These are the things that go on that give the every day autograph collector a bad name when crap like this happens it just makes it bad for everyone else. I have seen my fair share of these idiots that make the hobby look poorly in the eyes of the athletes to point where they either stop signing or just sign for kids or whatever they feel the response should be to correct it or limit the situation and interactions with fans. See the Jordan Spieth article from the USA TODAY below.
Jordan Spieth gets into it with 'scums'
by Steve DiMeglio, USA TODAY Sports
PEBBLE BEACH, Calif. – Don’t mess with Jordan Spieth.
“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),” Spieth said. “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.”