More times than I thought likely. 4:20 has happened a few times too.

And, for an instant, she stared directly into those soft blue eyes and knew, with an instinctive mammalian certainty, that the exceedingly rich were no longer even remotely human.

-William Gibson, Count Zero, 1986

10 years old, hit by a car. More unfortunately, it was the morning I had to go out of town, so only found out when the neighbour rang the doorbell (luckily? a video doorbell).