This is what you'll be encouraging people to do:

1 Rip off the flap on your disk drive tray (allowing dust and stuff to get into the laser)

2 Shove a knife into the works and hope that you hit a small pin in a specific place

3 Don't be surprised if the knife ever performs to its design specification

This is self-defeatingly cheapskate and I doubt that this stupid post will remain top of the stack for long after all the other cheapskates have had their say and told me where to shove the knife.