Picked up the iPhone X Friday and went for 2 long outdoor winter walks this weekend, and at the end of each walk I removed the iPhone from my pocket to find out the camera was on, and it had taken a number of photos (on first walk) and videos (on 2nd walk) while inside my pocket, wearing down the battery in the process. The lock screen was still locked in both instances. This never happened with any of my previous iPhones (7+, 6+, 5), so I'm looking for help on how to prevent this, short of disabling the camera altogether in settings/general/restrictions.