Family Duet

Little Harold was practicing the violin in the living room while his
father was trying to read in the den. The family dog was lying in
the den, and as the screeching sounds of little Harold's violin
reached his ears, he began to howl loudly.

The father listened to the dog and the violin as long as he could.
Then he jumped up, slammed his paper to the floor and yelled above
the noise, "For goodness sake, can't you play something the dog
doesn't know?"