I know of women who do it regularly to help out friends if they need it. I suppose it would come down to your overall health, whether you smoke or drank etc as to whether a stranger would accept it just as frozen ebm and not pasturised etc. I would possibly consider taking it from a friend if I needed any (but I don't, so hypothetically) but they would have to be a non smoker/drinker and in good health and not on any medications etc.