When I was about 15 I used to ride from my home in North Miami Beach to the the "strip" in Ft. Lauderdale (you can imagine the attraction of the destination, I'm sure
). Probably about a 30 mile ride. I was a pretty experienced rider for my age but the one time I forgot my repair kit was the time I flatted on the way home.
This was the Pleistocene Age (i.e. no cell phones) and since it was Daylight Savings Time I was riding late enough that the one LBS that was sort of on my way home was closing before I arrived.
Called the parents collect on a payphone (remember it was the Pleistocene and Hollywood Beach where I flatted was long distance and I didn't have a handful of quarters). They weren't real happy but dad came looking and somehow we missed each other.
Long story made short: About a 15 mile hike.
I didn't really mind the hike as I recall now but my parents were steamed.