Figured you guys would want to know. It's not a major issue so I'm not going to do anything about it. I've had it about 2 months now. I'll post again if this develops into a larger issue.
Image (also attached): http://imgur.com/a/UG1dH
I carry my phone in my front-left pant pocket, screen facing toward my leg, with the top of the phone pointing downward. I use this case: https://www.amazon.com/Nextbit-TUDIA-Slim-Fit-EXTREME-Protection/dp/B01HLSGGME/.