Insensitive AND politically incorrect:

An elementary school in Utah was planning a musical evening for parents, with each class contributing. The "special ed" class teacher had a big problem, though, as her mentally handicapped students could neither play musical instruments nor sing.

However, the teacher found that they COULD create a rhythm by tapping on objects - in spite of their mental disabilities, they could keep time. Thinking of harmless objects with which these students would not hurt themselves, the teacher gave each pupil an apple and a tiny little, short, stick. Her special-needs class was then able to create quite pleasant sounds by tapping those together in unison.

So the Moron Tap-an-Apple Choir was born.