Have you ever had a life threatening situation where you really believe someone/something kept you from being injured?

I was late for school and still had to pick my friend up. The light turned green and I usually immediately hit the gas and go (especially when I'm running late), but for some reason I didn't. 2 seconds later a semi-truck barreled through the red light and would have t-boned me if I did immediately go on green. Still gives me chills and that was two years ago.