Officiating isn't about listening to the crowd and responding to what they want. It's about doing your job. That means sticking to your calls, making the call on what you see, and doing the best you can. You can't be influenced either by a coach/wrestler/crowd or you won't survive very long. If you can find me a contract for an offical that states you don't need to know the rules but you have to listen to the pleas of everyone. Out of the numerous contracts I've received not one says you need to know the rules and respond with the atmosphere as needed. I'll conceid my position if you can provide me with it.
Throws a fit from time to time means it's a regular occurance and something that needs fixed. If it happens more than once it starts becoming a problem. They start seeing it as a way to react to a loss or other scenario they start doing it all the time. The parents/coaches need to step in and tell them to find another way to handle it or they will be punished. No one wants to be around or be a part of a team full of kids with attitude problems. I know I as an official won't handle it, I will remove the problem if it becomes severe enough.