Only about 5 minutes from home, I thought seriously about turning around right there, and pouting home to telecommute or bus, but instead I took a deep breath, checked the bike quickly, adjusted the chain, and was off. Now I have bruises blooming, a little road rash on my leg, and a scraped elbow, but my bike and I are mostly friendly again. That part, the get-up-and-try-again part doesn't come at all easily for me. But bikes and I have always made it up, I don't resent them too long, and they provide such joy, it's ultimately easy to hop on and go again.
Bike month is over, but it's definitely not too late to try bicycle commuting. Take sunscreen, and lots of water, go slow, and track your mileage at No Waste Wednesdays - they're having a contest!