On my ride home I have short 1/4 mile cutover on a MUP, which ends with 90 degree left turn onto a wooden foot bridge, which is notorious for being extremely slippery when wet.
Riding home one night about a year ago in a drizzling rain I was a little too relaxed and began that left turn at the same speed as I would on a dry day. At the very instant I thought "uh oh, too fast, slippery bridge", the bike just flew out and I landed squarely on my left hip bone. Nothing broke, but it was a stunning pain.
I laid there for about 20 seconds and moaned before I decided I better get up. I wasn't sure I could even ride my bike, but I did, four more miles home. I had a huge bruise on my hip which took weeks to slowly fade away.
I've never forgotten to slow down for that bridge in the rain again. Experience is a harsh teacher.