You shouldn't make your partner cry.
Jack is having trouble teaching his wife Sofia how to play the piano.
Jack wants to tell his wife what she's doing wrong.
Jack tells Sofia that she needs to pay closer attention to the keys she hits.
Jack raises his voice at Sofia and tells her that she's not smart enough to hit the right keys.
Sofia carefully presses the piano keys and starts to make progress.
Sofia starts crying and no longer wants to play the piano.