Other drivers

Similar to yesterday, I spent  7 hours today driving to and from a meeting that lasted 75 minutes.  The journey down was fine, without a single delay. The journey back was not fine - just one delay, for the entire 125 miles.  I didn't see a single special cause for the delay - no accidents, breakdowns or lane closures.  The cause must therefore have been other drivers whose need to travel was much less than mine. So inconsiderate!