Happened to me near JFK. Cracked the windshield, and certainly could have killed us if it broke apart.
Most dangerous are the large signs that I look at for people hiding behind and I switch lanes when I come up to them (if I can).
MOD for kids is to drop rocks vertically from bridge from behind the sign as a lookout calls out range and speed.
Get your ass over to another lane when you see signs like this also:
Defensive driving folks, esp. in large Democrat-led cities.
It happened to me north of Charlotte nc I thought it was a bullet. Very serious and scary