Don't have to read any reports - I have been out there and seen what is going on for myself.
Firstly - your "There are no clean shots to the head" --- what, none at all - that is a HUGE claim to make. So big it sounds like a figure you have just pulled out of your butt.
And as for the least pain bit - tell it to all the animals that tie a slow tortured death because they have been attacked by the camels.