About a month ago I was riding along and heard a lout pop so I stopped to check the bike out and noticed that I had broken a spoke on my rear wheel. I took it to my LBS and they fixed it in about 15 minutes (only $12). I speak to mechanic about whether I am too much weight for the low spoke count (245lbs, 24 spoke rims) and he says maybe but let's give it some more time and see if more spokes break.
Flash forward to last Sunday, I'm riding an organized ride (Richfields Sweet Corn Challenge) and hear another spoke break, luckily only about 1 mile from the finish.
I went and picked the rim up yesterday and get to talking with the mechanic (a different one) and said the reason my spokes broke was that he could see my chain had popped off the large sprocket, hit the chain, and damaged some spokes. He went ahead and replaced all the spokes on the drivetrain side just to be safe. They only charged me for the spokes (~$6) and says that he would recommend that I go to a 32 or 36 spoke rim. I told him I'll wait and see if I pop any more spokes.
I remember vividly when my chain went beyond the large spoke and into the spokes - the bike came stock with no dork disk. I never thought to inspect my spokes, lesson learned.
I also can't say enough about the LBS - Century Cycles - as they have always been nice, honest, and friendly with me. Both times I took my wheel to get the spoke fixed they did it right then and there, and they charged me 1/3 what the rest of the local LBS's wanted to fix the spoke and true the rim.
Sorry for the long ramble, my main reason for posting was just to let people know that they should inspect their spokes for damage if the chain gets sucked into their spokes