On 04/10/2020 16:07, Andrew wrote:


I was an IT contractor at an insurabnce co in Croydon where the
door to the computer room on the top floor had two push buttons,
one to ring the bell to request entrance, and the other to set off
the Halon fire extinguishers.
This was actually activated twice during a 4 year period by people
who thought it was the door entrance button, despite being protected
by a sliding perspex cover and clearly marked.


Expensive! For every foolproof system.....