Tell me about it. I've replaced 2 screens on a MBP. One was from cleaning the edge of the screen. I applied just a little too much pressure and it destroyed the whole screen.

Another was when my kitten bit the edge of the screen. It didn't even leave a mark but it was just enough concentrated pressure at the edge of the screen that it killed it.

Now I'm a lot more careful, but thank goodness for Applecare.