I was in Flint in the summer of 67 when the Detroit riots erupted. Our frat house was a big old three story plus basement in a not great part of town. Most of my frat bros were guys from Ohio and Indiana, many from rural areas.
Those guys all dashed home and came back a day later with an arsenal of guns the likes of which I haven’t seen before or since. Thankfully they didn’t need to be used.
It was the first time I ever felt a palpable fear shared by others.