You’re a grown woman and in no other area of your life do you feel so vulnerable. You resent it even though you understand there is a risk - however small. It is frustrating and tiring and constant. And yet sometimes, despite all those calculations, it still isn’t enough.

Even being on the phone has downsides. One eye is always on the person in front or behind - would they help me, might they be a threat? Should I cross the road, would that make it worse? Are there lights on in any of these houses if I need to pretend this is where I live?

Tell friends ‘it’s fine, it’s just around the corner, I’ll text when I’m back’ …but still we make a plan - Keys gripped between fingers we map the corner shops we could duck into en-route. Swap shoes for trainers in case we need to run. Keep our music low or turned off.

What happened to Sarah Everard has hit home hard for so many women because we make the calculations she did every day too. We take the longer, better-lit route, push the fear aside for the voice that says ‘don't be daft, you've every right to walk home alone at night and be safe’