We don't need no education,
we don't need no self control
No dogs of chasm in the crossroads
Teacher leave those kids alone

The story:

I had just bought "The Wall" on CD, and was
listening to it in the living room with a few
friends. We were singing "Another Brick In The
Wall" when my lyrics stopped everyone dead in
their tracks. "What!?!" I said. They handed me
the lyric sheet and hit me in the head.