I feel so bad, I had a terrible car accident.
That sounds awful! What happened?
I squirrel ran in front of me and I swerved to miss it and hit a tree.
You should be more careful to anticipate hazards in the road. Paying attention to the road and not being distracted will help to prevent accidents.
I know, but this accident was unavoidable. I didn't want to kill the squirrel.
It's good that you didn't kill the squirrel, but sometimes you have to make a difficult decision. It there had been a child on the side of the road you might have killed him. I hope your insurance policy covers the damage to the car.