“...“cheese and rice”...”
I’ve never heard that clirty before (a clirty is a cleaned up dirty-—sh*t becomes shoot, damn becomes darn, etc.). But the point of your story is well taken. Tennis is supposed to be a genteel sport and not roller derby.
These were high school tennis kids, and their heroes were the pros which is one of the reasons there is certain court manners for the pros, to set examples.
Imagine a professional baseball player, throwing his bat, creating a scene and when the umpire calls him on unsportsmanlike conduct, the player then calls the ump a thief and liar. Haha, he would be off the field, in the dugout changing his clothes within seconds.