Seeing the off today made me think of this, because it seemed other than checking that the rider was ok everyone sort of sat around with their thumb up their ass. Note that every off is different, sometimes its on a small group ride, large group ride, individual or pair. You just gotta make do with what you got. So there's been an off. It might involve one rider it might involve a few. Once vitals have been checked and rider removed from the road into recovery position: 1. Have someone who is standing around go and mark the corner preceding the lane involved, getting people to slow down. No good having a couple people and their bikes sitting on the side of the road get cleaned up by the next few to come through. 2. Try and get passing cars to stop. Ask if you can steal water off them. Water is as close to the magic healing liquid as you will get, particularly in the middle of nowhere. 3. Get the downed bikes upright so that nothing more will leak onto the road or into different parts of the bikes internals. Keep the road clean for those following, and if the bike can run again you want it running as smooth as possible for however long it needs to be running. 4. Thanks to Hornet for this one. Have someone scout the road ahead and behind for a better place to park bikes and wait out the next hour or two. Murpy's law states that you are certainly not going to have it at the location of the crash. Sometimes this just can't be done, life goes on. Other ones involving the rider's well-being are particularly obvious, concussion, the crew with the disco lights and noises etc. Ride safe.