Truths of human behavior

If you're walking on any kind of thoroughfare, like a sidewalk, people will stop at the narrowest point to block passage so they can check their phone or whatever the fuck.

Related: if you're walking along any sort of thoroughfare and someone is stopped to do some kind of personal adjustment (texting on the phone, putting something away in a pocket or purse, whatever), they will conclude their activity as soon as you're within a pace of them and they will start moving without looking, usually to cross your path so as to crash into you.