Mine was about a year and a half ago. July 6, 2012 I was stopped at a red light, about a 1/4 mile from the actual light. A guy in an 80's Silverado slammed into the back of me going 35 mph. He hit me with enough force to knock me into the coupe in front of me and then the coup into the F150 in front of IT. I drive a minivan.
ETA: If my minivan had not been the first vehicle hit by the Silverado (claims his brand new brakes failed) that coup would have gone UNDER the F150 and it would have been a fatality. As it was, my husband and I suffered some mild whiplash. My kids were uninjured; scared, but uninjured.
I took $4,000 worth of damage to my back end. The body shop that I took my car to happened to be a couple blocks away from the mechanic I take my car to. I had arranged a payment plan of $20/week to pay off them fixing a sensor in my transmission. That was an $800 bill. This particular day, I went in to make my payment, only to find that some anonymous stranger had paid $500 of my bill for me. The mechanic didn't know who it was, and they asked to remain anonymous. To this day the mechanic is still holding the thank you-Christmas card I got to let them know about my gratitude.
I walked back the the body shop, sat down on their couch, and just bawled. The receptionist thought something was wrong, until I told her what had just happened.