London train held because of suspected fare evader. 

16/10/2018. Train station staff followed this guy in to the train after seeing him go through the station entrance gates without paying.
They asked him to get off the train. He refused to get off the train causing the train to be held at the station for a considerable amount of time.
Eventually station staff gave up and allowed him to continue his journey on this train as they are not allowed to touch suspected fare evaders and it would take too long for police to arrive.
This caused significant delay for thousands of paying commuters making their way home during rush hour.
This train was supposed to stop at all stations from Richmond to Waterloo. As a result of this delay the train changed it's schedule and after the next station, (Barnes), it went straight to Waterloo without stopping at the stations in between.
Hundreds of people that were supposed to get off the train at all the stations in between Barnes and Waterloo had to get off at Barnes station and wait for the next train.