I nearly ran someone over and it's entirely my fault
Why did you almost run him over?
It was an accident
You should be more careful while driving. I hope that you pulled over and made sure the person is okay before driving again?
I didn't kill anyone and my car is fine, so it's not a big deal if I didn't.
It is still good to make sure that they aren't hurt,   In addition to being courteous, it avoids you getting in trouble for a hit and run.