Another note because Lauren can't ever seem to remember to include all the pertinent information at once!
The trials for the Hogwarts Quidditch team will be CLOSED to anyone not trying out, including foreign team players and Hogwarts spectators. This was not broadcasted, so it is perfectly legitimate for people to scheme about trying to watch and to show up expecting to be allowed; Coach McCormack just barked at anyone not on her list to either grab a broom or go straight back up to the castle. And if anyone tried to sneak in, McCormack's Sneakoscope would have gone off and she'd have found them and told them off something terrible. In fact, their ears would probably still be ringing on Sunday. McCormack don't mess around.