Quite surprised at this thread -- as someone who put themselves through school in Foodservice I'm amazed at the lack of knowledge.... There is a reason there are standards for food service workers -- post this in any Japanese airline thread and watch the fireworks - it's just not sanitary.... I agree with the poster that said the FA forgot her hair clip -- I'm sure UA has basic standards for hair ....

https://doh.dc.gov/sites/default/fil...02016%20v1.pdf