You know when you excuse yourself to the restroom while out to dinner, and you wash your hands and check yourself in the mirror to see a piece of spinach between your teeth? And, you wonder, why didn't ____ tell me?!
I hate that.
I always tell someone when something's between their teeth - mostly because I wouldn't be able to stop looking at it, and it makes me gag - but also because I would want them to tell me.
Back in my learning-to-apply makeup days, my mom always told me when I did a horrible job. She'd be like, "No. That's too much eyeliner, you look possessed." Or, "I can see the foundation line on your jaw - wrong color, honey." And, my good friends and I would offer advice and tips, as well. That's having your girl's back.