I always assumed it was because they're training the summons (read Carbuncles) to work and search. I equated it to a drug dog and obviously the newer/younger/what have you they are the less distraction they can handle so you have to be mindful of the dog and trainer and try not to be in the way if you're observing.
But Lord knows I have to have complete silence when I'm 'mathing' so... that could be it as well.
But Lord knows I have to have complete silence when I'm 'mathing' so... that could be it as well.
