So today I had my double barrel dragon moment. I had just finished fighting one, was still a bit bloody and bruised but healing, and another starts circling overhead.
I managed to kite him through a giant's mammoth herd, where he promptly started attacking the delicious looking mammoths. Farmer Andre (the giant) comes rushing to the herd's defense, dragon gets killed. As I had evidently caught the giant in one of the Shouts, he starts stomping towards me, and I take that as a cue to beat a hasty retreat. After he calms down and I can go back to the dragon, it doesn't do the Quickening, although I can still loot him for bones and scales.
So now when I walk past the camp, there's a perfectly preserved dragon lying in the road. Should give the locals something to talk about.
Also, you haven't lived until one flies up behind you quietly and the first inkling you have of something wrong is the earth shaking thud of his landing...