Have you ever wondered where a barber goes for a haircut, how a bus driver gets to his holiday destination or whether a politician debates which car to buy with their significant other before taking the plunge? What about what happens when a first aider needs first aid?

Picture the scene. Friday night. It’s been a long week at work. You’ve just left your work colleagues behind after attending a fascinating technology talk, and you start to head home. You take the tentative steps down Oxford Street tube station, you lose your footing and you fall down five or six stairs.

That was my Friday night. Ouch.

An innocent bystander came to my aid, offered her assistance and helped me get back on my feet again. I thanked her and sent her on her way, politely declining the offer of further help.

I tried to move off. I started walking. I was in agony. I realised I’d sprained my ankle. I hobbled down the escalator and got on the tube in the direction of Kings Cross. I got off and made slow progress, walking tentatively through the cavernous maze of new underground tunnels at Kings Cross station, to make my way to my overground train.

45 minutes later, I arrived at my home station and much to my horror, there were no cabs, so I had to hobble home. The usual ten minute walk took me 40 minutes, including an agonising climb up the final flight of stairs in my block of flats.

At this point my left ankle had swollen to twice the size of my right. I grabbed a bag of frozen peas out of the freezer, slung a tea towel over my shoulder and made my way to the sofa for some serious rest, ice, compression and elevation.

As the pain radiating from my ankle slightly subsided, what TV programme did I watch to try and take my mind off it? Nightwatch – a programme about the work of  emergency services. How ironic!

In a way, it’s a good job my first aid duty got cancelled on Sunday. I wouldn’t have been much use.

Every cloud has a silver lining though. As a first aider who received first aid this weekend, I am much better prepared for helping people cope with the symptoms of sprained ankles next time around!