Bad weather is good experience. With that said, I don't always go on a trip if it is going to start out bad. If weather hits while out, you deal with and gain experience. As for the wet underwear not being fun, I've been snowmobiling in the winter, maybe had light snow/rain, still gotten wet with raingear on, the wet underwear sure doesn't "sit" well, nothing like a little squishy going on where the light don't shine.:) I was able to gain a little experience in early Oct. this year, bping with the threat of up to a foot of snow in Yosemite. Fortunately, only 4" fell at the higher elevations on my first night out, so I had to hike thru it for a few hours the next day in the afternoon. Got lucky, I found a spot the second night under a tree where no snow accumulated. Terrific day the third day out, down to my shorts and shirt in the afternoon and a dip in the water. By the way, I hiked thru the snow in my shorts, it wasn't that cold!