I managed to get a toe nail infection from god knows where, possibly the nail salon? I didn't even realise until I went to change my nail polish. I tried various otc remedies, nothing worked. Thankfully, it was during the first lockdown so while I couldn't see a GP, I was able to cut the nail as short as possible and it grew back, free from infection, by the time I started seeing clients again!
Anyway, Ana, I don't think you were being precious at all. I would have insisted on socks on. I would possibly add a note about this to my profile too. Given his reaction, I think he was just embarrassed by it, he was probably hoping you wouldn't notice it, let alone say anything about it.