iPhone 6 bent and caught fire (philliplechter.wordpress.com)

I understand that the iPhone can bend, but the photos show like a 90 degree bend, that's a bit odd.

Assuming the case was facing out like the author stated, there was clearly a great amount of force placed on the center of the device's back to make it bend like that. Maybe when the rickshaw tipped he fell on a bar or something like that. Considering the degree of the bend it's really not surprising that the battery caught fire.