Raining Tennis Balls

I have a pavam tennis instructure.
The poor old guy was tearing his hair trying to teach me.

Instructor : You have to just jab the ball. The point is to get the swing and not apply too much force. Okie try now

He throws the ball at me
and
WHAM....

Then ball flies over to the 12 foot fence of the court and goes sailing.
I hear someone falling with a cry in the other court.

My poor coach goes running there.
I stay put. After all I am learning and it is not good to leave court.

The coach come back after some time, somewhat red.
Coach : Alright that is all for today. We will continue some other day.

I haven't see him since. Heard that he has taken a long leave.
..
..
Waiting for him to return. :))