Sometimes it is far better
  To leave the past behind,
Lest you get hurt,
Get cut, get burned,
By things once oh-so-kind.

Do not be fooled by looks,
  Or be lured by a stray sound;
If you don't know
What waits in tow,
Oh please, I beg, don't look around.

Once you may get lucky,
  You might even pull it twice,
But come again,
Your luck would end,
And then, my friend, you'll pay the price.