I did not and nearly came a cropper.
Was walking around today and thinking: that's weird, my fourth toe is painful. First I thought it was my sock seam so adjusted that. That didn't help so I fucked around with my trainer tongue. Still no use.
Finally I got back to my car and took my shoe and sock off. There was a line around my fourth toe which first off I thought was a sock seam line, but then I rubbed it and realised it wasn't. It was a hair, wrapped around my toe! The toe above the line was bright red.
I sort of scratched at my toe till I got a break in the hair, then unwound it. Not quite instant relief - it took a good few hours for the toe to feel and look normal.
On googling, apparently people can actually lose their toes from this. Like it's a serious thing. Admittedly mostly for babies, but from today's experience also for dummies like me who don't realise.
Don't let this be you!