Brown substance on chain

[ColinJ]

Seven people have told you your chain has gone rusty after not being used for a couple of weeks yet you still don't really believe them?

I thank God I'm not married to you.

I had it happen in less than one day after I went out for a quick Christmas morning ride a few years back. I was under strict instructions to be back in time for Christmas dinner so I rushed home, and put my bike away still covered in salty grit because I didn't have time to clean it. I took the bike out into my back yard first thing on Boxing Day and discovered that the chain had rusted solid overnight!