I know three people who do that. It is so frustrating, even if you don't look at them, they often start saying what you are and you can hear it. I try and trick them and stop mid sentence and let them finish, but they don't. They stop when you do. Okay, two women are old, (over 70) and the third is also a female, but much younger (late 20's) and she is a bit on the numb side. She also would make up stories and say I was in these events she did...with her. nutty. (we went sky diving? REALLY!???not.) I came on here to see if it was an illness with a name. I guess not.