Ok....this subject sure has got me thinking. Pardon my ignorance. Do you all have other pets? Do you practice biosecurity with them? If you have a dog, that means you don't take them for walks cuz he may come into contact with another dog that has parvo or fleas, etc. Same as a cat, can't...
Maybe if a person told you she had a closed flock and then got some from an outside source, it was her way of saying, "I don't want your birds". An easy out.