When the hefty hag was a supervisor of mine, every day just about there were stories of how great her stupid boy was at whatever. She must have wanted people to applaud like seals.
But the worst was my best friend who thought his kid was the greatest player in the world. To be brief, he wasn't the greatest player in the world.
Thankfully, I never coached his kid. But I had to listen to many years of him bragging about his kid and him trying to force me to say how great his kid was. Sorry, I just couldn't bring myself to lie.