Write a plausible story that ends with this sentence?

Last sentence: From then on, I made sure to leave myself plenty of travel time.
I was riding my bike to work one summer morning. I was a little late, so I was in a hurry. I was biking a little recklessly. To my dismay, my reckless biking caused me to get in an accident. From then on, I made sure to leave myself plenty of travel time.