I heard a kind of, but not extremely loud (think 20g shotgun) pop and then the ass-end started jumping left/right/wherever it wanted to go. I kept thinking about tying one in the back of a truck and told myself, Keep the front stable and the back will be OK....it can't fall over (while also looking for a place to jump if need be). Stayed off of the brake and rode it to a stop.
All in all, not very dramatic, but it scared the hall out of me for a minute.
I agree with you though Scorp, probably better the back than the front. it's the first time that's happened to me in over 25 years of riding as well.