1. If you fall: yell as loud as you can, let everyone know you are lying on the trail in pain. This would get other people's attention so they'd get help. This would also prevent all the other moron racers from running you over.
2. If the shoulder pops back in, rest for a while and then walk out. It takes the first aid crew ages to get to you, so go to them!
3. If the shoulder does not pop back in, rest for a while, pop it back in then walk out. Or you can wait for the first aid crew and let them pop it back, but since they won't do any better then you would, you may as well pop it back yourself. (For info on resitting a shoulder please refer to Shoulder Dislocation How To.)
4. Once at the first aid station, just ask for an ice pack. You can tell the crew every detail about the crash, Their final analysis will always be a ice pack. So skip all the bull shit and just ask for the ice pack.
5. When all is done, ask for a sling and any other medical crap to make you look bashed up. And then walk around the race site, telling everyone about your crash no matter how minor it is, bull shit all you want, since you got the shoulder to back you up.
6. After the race get to a hospital ASAP and get it checked for fractures.
The information above should not be taken seriously (but some of the tips here could actually be useful, I tried them myself!)
The first thing to do when you shoulder dislocates is to leave it alone, hope that the shoulder resit itself. If you are one of those unlucky once, the best thing to do is to leave it and wait for help, that is the best thing you could do. But if you are on your own then find something that you can use as a sling (e.g. T-shirt.), secure the shoulder then walk out for help.
The following info is only for situation where it is totally necessary to do so.
First hold shoulder with your other hand, apply pressure toward the body. Then while still applying pressure lean shoulder against a flat hard surface.(e.g. wall) Slowly put body weight onto the shoulder after a while the shoulder should resit it self, if this doesn't work then you are on your own!
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