I was actually looking forward to my first rain commute of the season. Despite dire warnings from the fear-mongering weather folks I started out with a wet but delightful tail wind, and was feeling pretty good in my rain clothes.
Then, riding through an area I ride every day, I caught my front wheel on a cement lip running parallel to my path. I'm guessing that because it was so wet, and it was the first rain of the season, the road was extra slippery. I didn't do a slow fall like in the movies, I just went boom. i smacked right into the pavement and whipped my head onto the ground.
As crashes go, it wasn't that bad. I got a bloody elbow, a big headache, and I'm sure I'll have impressive bruises. But nothing on the bike broke.
When I got to work I ordered a new helmet. I'm upgrading my Bell Sweep to a Bell Volt. The Sweep isn't cracked or anything, but I'm being a proper cyclist and replacing it anyway.
UPDATE: The Volt is here, and I like it even more than the Sweep! It has a nice adjustment for the back that let's me dial in the fit better than any helmet I've ever had.