I would tend to agree, but in this situation, that looks to be like a 10 or 11 year old kid asking for an autograph and he just ignores the kid like he doesn't exist. He doesn't even acknowledge or look at the child to say something like "sorry kid - not tonight". I wonder if the heckler is the kids father. If I was in the same situation and that happened to my kid - I might do something similar to be honest (I'd probably start with something more civil like "c'mon Rios, don't just ignore the kid"). For some kids - that interaction might be a once in a lifetime experience. I've taken my 3 boys to LOTS of spring training games and I can tell you their eyes still light up when they get an opportunity to get an autograph or be that close to a ML ball player.
Now fair - apparently he was coming from a charity event and I don't know what it was or if he just spent the last hour signing autographs - but this reminds me of how he acted when I was there during the special Blue Jays meet and greet that I attended after a spring training game. He walked around with his head up like he was better than everyone. He showed up really late and was the first one to leave. There were dozens of kids surrounding him and he just ignored them. I vividly remember wanting to say something to him that day because it really pissed me off.
There were lots of stars there that day, like Doc, Aaron Hill, Vernon Wells, etc. who sat there from start to finish with a smile on their face, signing autograph and interacting with fans and kids all f***ing day - but the minute Rios arrived, he looks miserable. His face was so punchable that we just walked away. When you're a **** - you deserve to be reminded of that - no matter what day or time it is IMO - and Rios is a f***ing ****.
I'll always remember this story - we were in Bradenton watching the Pirates play a spring training game. The bullpen was really accessible and there was a no-name pitcher who had finished warming up (he wasn't going into the game - was just getting some work in). My kid was probably 8 at the time and he ran over the watch them warm up (I stayed back and watched from afar). He was the only kid there and he had a ball and pen with them. He sat there patiently (not a loud kid) at the fence, but the pitcher ignored him. Finally someone from up top yelled down at the pitcher - and sure enough - it was his parents who were there to watch him. Oh man were they disappointed with their son. They laid into him about forgetting what it was like to be a little kid and how special moments like that could be. The pitcher came over, apologized, signed the ball and spent a few minutes talking to my son. That made his day and he went home with a smile from ear to ear.