You get his insurance information, you get his personal information; you call up your insurance company and you say that you were hit and it was his fault. (if it was).

Then his insurance pays for all the damages and you go home with a new bumper/fender or repaired bumper/fender and no money out of your pocket.

If it's your fault or partly your fault, I suggest keeping it out of insurance's hands, but that is technically illegal if it is over $500.00 in damages.

Hope that helps.