"I will leave the game if you can't read my mind and respond to me the way I want! "
Some of them may be hard to figure while others are not. They tell you exactly what they want but often its at the expense of everyone else.
I've never experienced this. Maybe I don't play games with people who get to that point so I don't see it but if someone did reach the point of being a 6 year old about a game then I probably wouldn't ant them there in the first place.
Some people do and will act like a child when they don't get their way. I for one, do not entertain any kind of immature or moronic behavior in my space. If you want to play with the sand in your own kind of way regardless of others around you then go get your own sand box!