Is there any way to keep the screen off when a call comes in? I'd like to be able to turn the screen on with the power button, but have the default set so the screen stays off. The issue I'm having is that someone will call while my phone is in my pocket, and the screen automatically turns on. There are many times when I can't answer calls throughout the day, so I can't take the phone out of my pocket. The screen will detect my pants pocket/leg touching the screen, so it will keep the screen from turning back off. There have been several times where the screen has been on for a few hours by the time I get my phone out of my pocket. Any way to keep the screen off with incoming calls? Thanks in advance.