| A couple of exampleas at opposite ends of the spectrum.
The first was coming over the Pas de la Casa from Andorra back to France in a blizzard, we stopped for a minute for a quick breather and a local also stopped and said the pass was closed and we wouldn't get over, but we just had.
All the cars were fitting snowchains and the snowploughs hadn't been over yet. By some miracle i didn't drop the bike but my mate binned his twice.
The scariest and worse incident was off roading in the Sahara desert in a sandstorm, visiblity was all of about 20 feet if that. Thank God for GPS as you couldn't see a thing. Without that we would have had to sit it out for several hours as we would never have found the bivouac and its a big place to get lost. Even with GPS it was hard work keeping the bikes together and i was more than a little worried. (polite understatement for *****ting myself). The complete lack of vision whilst being sand blasted was not nice.
There was also a little incident of being stranded on a ridge in the desert overnight after a massive storm and flash flood (only happens once every 10 or 20 years according to the locals) turned the valley into a river, and the ridge into a small island, but that wasn't riding it was just marooned. When the water went down a bit the next day the bikes were floated to shore on a raft made of inflated inner tubes and sand ladders from a Land Rover.  | 
Threaded Mode