Speed wobble safe fall? What's the best downhill safe fall if you're getting a lot of speed wobble, or you're on a really rocky course and lose control?

I noticed a lot of people try to slide the bike down to its side, but that isn't always possible.  When it's not possible to do that, should the bicycler try to pop a wheelie and go to his back?  Jump up and start running, and then slide on his nostrils?  Roll?  Log roll?  I've seen so many different falls, and I've always improvised.  I'm of the belief that you have to know how to fall before you do any sport, though, and I don't feel right not having researched bicycling safe falls.
Between BMX and mountain bikes I've fallen quite a bit over the years.  If you're getting bad speed wobbles then there is something not right with your bike.  I've never seen anyone get speed wobbles on a rocky course.  If you're going fast enough on a rocky course that this is a risk you should be wearing at a bare minimum a full-face helmet.  Shoulder guards wouldn't be a bad idea either as would shin/knee combos and elbow pads.  Get a helmet, get safety gear.

The worst crashes I've seen have always been when the person doesn't see it coming, and you're probably not going to see it coming.  Popping a wheelie and landing on your back is known as looping out.  Even if you land on your feet, at speed you're going to mess yourself up anyway.  Don't do it.  I might try locking up my back brakes and skidding sideways, but that's still really sketchy and a desperate measure.

When it comes to crashing there really isn't definitive answer, and you really must use your best judgement.  You want to stay loose and judge the situation in that split second before impact.  Screw the bike, save yourself.  It's better to get road rash than to hit a semi/boulder/tree.  Be aware of the worst hazards and TRY to choose the lesser of two injuries.  Remember that if you're going fast enough that speed wobble is an issue, then losing control of your bike is one of the worst things that could happen.