Once saw the letter written by a chum to the PMC after a bit of horseplay with the red boys:
"Sir,
I have the honour to report that a no-notice functional check performed on First Aid Fire Appliance (Stored Pressure Water) ref. nnnnnnn in the Officers' Mess ante room proved entirely satisfactory.
However, I shall in future ensure that such checks are more properly carried out by those normally appointed for the task and are conducted in the designated testing area.
I have the honour (etc)"
No doubt nowadays such things would require a full evacuation of the Mess as the mandatory health and safety
level of fire fighting equipment would have been reduced without approval.......