I had my new (5 mo old) Iphone 8plus in a purse compartment with a pen and nothing else. It has a case, but it did not cover the button. The button stopped working and upon further inspection, you could see a pin-like poke on the edge of the button where it met the glass. All I can surmise is that the pen must have leaned against the "very fragile" button and caused the damage. I'm very careful with my phones and the purse was never on the ground. I still can't figure out how the pen was able to exert enough pressure to damage the button, except for the fact that the button is hyper-fragile. I did read somewhere that they were having issues with the buttons "frequently breaking /not working " on the 8's. I mentioned this, but Apple is still charging me $187 to have it fixed. It was a gift and sadly, insurance was not purchased, and because it is not a software issue, the one yr warranty doesn't apply. Now I need to find another case that covers the button and still allows it to work properly.