Modern tennis - some questions

1. towel ritual at the service line
Who invented that show with boys and girls fetching towels to the players after almost each point?
It must have been that someone accidentally forgot to leave his (her?) towel at the chair and then all others picked the fashion up.

2.Applauding after each point
In an average match there must be zillion of points.
How come the hands don't fall off after a long match?

3. Farting in the audience
If someone in the audience, in the closest seats farts, is it regarded as disturbing of player(s)?

Originally posted by vandervelde
Modern tennis - some questions