But I didn’t realise the phone continued to record, and now, for the first time, I see what the lens continued to capture from its new position. Below us, a split second before I fall down the ladder, is Debbie. And she looks as if she is shaking it. No, I correct myself, she doesn’t just look like she is shaking it, she actually is. I replay it several times to make sure my eyes aren’t deceiving me, but they’re not. She is the reason I fell.

