<human>: A couple of years ago, in the middle of winter, I found out I had a kidney stone. I didn't have a car at the time as I was living on campus and didn't feel the need for one, and thus I didn't have a ride to the hospital. The doctor at the clinic asked me if I wanted a ride from the campus police, but not wanting to bother them, I declined. Instead I walked to the hospital. Normally, it's not a bad walk, and it's only about half a mile away. However, when it's freezing outside and there's several inches of snow and I'm only dressed in a t-shirt, jeans, a medium-weight coat, and snow boots and I have a kidney stone that's on the move, the walk is definitely less than pleasant.

Can you summarize the given text in a few sentences?
<bot>: walked half a mile to the hospital in winter with a kidney stone because I didn't want to bother the campus police by bumming a ride