[Busman747]

A strange thing happened in the bus station last week, I was in the bus at the time so am unsure what exactly happened but - - -

An alarm went off (Fire?) and simultaneously the power was cut. (Was it the alarm that cut the power or the power cut that started the alarm?) This only lasted perhaps 30 seconds but my customers were unable to get into the bus station and more worryingly, customers that were waiting to get on the bus couldn't get through the doors to exit the building!! For a few moments there was panic on both sides of the closed doors. Is this a design fault do you reckon?

In a normal situation, the doors remain closed and locked until a bus pulls up. A gadget on the wall recognises that there is a big red lump in front of it and the doors then open & close for passengers. Woe betide any passenger that loiters outside (talking?) until I pull away, the doors close and will not re-open.