I have only ever broken my phone glass ONCE recently. I cant remember how, but it fell off the dining room chair and the screen shattered. Not sure whether new kitten had something to do with it !!!! I was surprised it broke after falling such a small distance. My daughter is forever breaking her phone screen and gets a new phone about once a year. I looked into getting my phone screen repaired but they were asking about $200. No thankyou !!! Hubby got me a new phone.
This never happened to me at all when I had a mobile phone,yet my son and his colleagues are often doing this with their phones!! The smart phones are almost ALL glass screen these days so you do need to treat them with a certain respect and level of care!!!
I have a good quality protector case on my phone but am always careful that I don't place the phone anywhere it could fall. Having said that, it did accidentally fall off the top of some magazines I was carrying onto quarry tiles but the glass never shattered.