What do you do? Do you take it out and continue eating or do you abandon your meal?
Personally it makes me feel physically sick when I find a hair in my food (family member or not) It completely puts me off my meal and I end up leaving it.
I take it out and continue as if nothing happened. It's only hair. There's nothing so bad about it. It's not like it's someone's nail. That would be a concern.
Found one in my fries just a few days ago. I took it out and continued eating. It didn't actually bother me at all. I love food so, not going to throw it out.
It truly depends on the place, If it was in a restaurant I would take a photo, call the waiter and demand a refund. It has happened with some family members too. I remember one time my grandma made me dinner and I found a hair in the rice, but I didn't want her to feel bad so I just put it out.
But yeah, most of the time I stop eating.
I'm not disgusted if I find a hair. However, it just shows little care was taken into making my meal and then I wonder what else they're not being careful about.
Honestly it digusts me... But it's nothing if you see what happens with food inside kitchens of Restaurants in general.
Really high igyene in Restaurants is very rare in real life.