Here is a simple video I made showing how my iPhone 6+ got bent. Twice now. Now that I know this happens, I simply pull my pants leg up a bit while I am kneeling down and that gives it the needed room. Having never had to do that before with any other phones I have owned I did not know it was necessary. I have never put my phone into my back pocket and sat on it. Please don't come back to me with that.
You guys would really be surprised, as I was, at how little force was required for the corner to bend.
https://www.youtube.com/watch?v=XQxX_x3HTXQ