A policy of never using fire extinguishers is often used to justify not providing them and or the appropriate training. I think this is a poor approach and puts people at greater risk.
Apparently even an MP managed to use one the other day so it can't be that difficult!
Minister saves the day in Commons chip-pan blaze
"Tory MP Tobias Ellwood knows a thing or two about putting out fires. After all, he?s Minister for the Middle East. So it was just as well that the former Army officer was on hand this week when a chip-pan fire raged out of control in the Commons tea rooms.
As flames engulfed the kitchen, Ellwood, 49, dashed in with a fire extinguisher to quell the blaze, singeing his hair and eyebrows in the process.
Such heroics were clearly wasted on his Conservative colleague Alec Shelbrooke. Moments after the disaster had been averted, Shelbrooke arrived at the counter, impatiently enquiring: ?Where have my sausages got to?"