I learned a valuable life skill yesterday. Probably like most of you, I have a fire extinguisher at home. Every now and again (hmm, once a year, every 2 years? Dunno), I read the instructions so that I’ll know how to use it when the chips are down (see what I did there? No? Oh, well never mind). But my mind is like a sieve. I know everything about something for all of five minutes and then, poof, it’s gone. So at yesterday’s open day at the fire brigade, I decided it might be