A boy asks his mother for bass lessons. She takes him aside and says, “Now, son, you wanted ice skating lessons last year. I bought you the skates and the pass to the rink and you went twice and quit. We can’t have that again.”
“No Mom, I swear, I mean it this time. I will stick with this.”

So she buys him a bass and signs him up with a teacher.

After his first lesson, she asks, “Well son, what did you learn at your bass lesson?”
He responds, “Well, mom, I learned two notes on the E string.”

After his second lesson, she asks, “Well son, what did you learn at your bass lesson?”
He responds, “Well, mom, I learned two notes on the A string.”

After his third lesson, she asks, “Well son, what did you learn at your bass lesson?”
He responds, “I didn’t go.”