Yesterday I found three scratches in my Sensation that I can't explain. There is a very very slight chance my keys were in my pocket for a second but I truly don't think so. I am very anal about my phone and not careless with it in any way. I can say with 100% certainty that the phone was never placed face down. And that there was not any sand or dirt in my pocket. I can't explain the scratches which makes it worse LOL. But people.....use a screen protector. I wish I had. Even though it is Gorilla Glass, it scratches.