The Country-Western Bass Player

So this kid decides he wants to be a country western bass player and moves to Nashville, seeing as that's the home of county music.
He seeks out the top bass player/teacher and approaches him about bass lessons.
The pro says that in order for him to teach the newbie, the kid has to show up on time and learn what was taught. "OK, I can do that." says the prospective student.
Says teach,"My house, 4:30 Tuesday next."

So the next Tuesday the kid shows up and the teacher describes the biggest, fattest string closest to his chin: "That's the E string. Start at the bottom and play the first 12 notes up the neck and back down. That's called a chromatic scale."

Next week the kid executes his first lesson and teach describes the next biggest,fattest string, calling it an A string and tells him to do the same thing as the week before.

Nest week comes and the student is a no call, no show.
Teach is angry, very angry, but there's nothing he can do about it so he forgets about it.

Many weeks later Teach spots kid at the grocery store and calls him on not showing.

Says Teach,"What happened to you? No call? No show?"

Says student,"I got a gig!"