‘Have you been flossing?’ The four most terrifying words in the English language. The dental hygienist peers down at me through her scary goggles and speaks in a strange, muffled voice through her mouth mask. Despite all the face furniture I can see that she is arching her eyebrows. ‘Have you been flossing?’ I’m more inclined to lie in answer to that question than in response to any other situation, no matter how intimidating.
The time the banker boyfriend had me cornered in his swanky mews house and was throwing a wobbly about my phone ringing late at night was a doddle in comparison. I’d rather account to an irate City boy screaming ‘Who was that on the phone?’ than a dental hygienist asking ‘Have you been flossing?’ any day of the week.
After owning up that it was my ex-boyfriend who still called me sometimes when he was drunk, I was thrown out on to the street in my pyjamas. But I fancy that is a breeze compared with what will happen if I answer honestly the question: ‘Have you been flossing?’
Either the flossing police are going to take me away; or the association of dental practitioners will rescind my dental insurance; or the hygienist will start slapping me around the face yelling, ‘How dare you come in here with your filthy, unflossed teeth, you loser, you make me sick, your sixth form teacher Mrs Lloyd was right, you are never going to amount to anything…’
So why don’t I just floss? Surely that would be easier. Why is flossing the thing I am second least likely to do after telling the truth about not flossing?
Sometimes I stand in front of the mirror after I’ve brushed my teeth saying: Go on, do it. Tear off an arm-length strip of floss as demonstrated to you by the hygienist and start sawing around your teeth.

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