I have never had the distinction of meeting a MIB, but I did have a strange thing happen once at a Price Club store back in 1990. I had gone shoppng with my mother and had gone off to get a crate of milk. Every other aisle in the store was crowded, so I was rather pleased to find myself the only person in the dairy aisle. I found the type of milke she wanted and had just pulled it out of the case when I saw two other people enter the aisle. They were both overweight, not obese, just well-fed, both had graying light-brown hair, both stood about 5'6, and both had these god-awful blank expressions on their faces. The first thing I though was "druggies". I saw their eyes, pale blue, stare blankly straight ahead, and the woman said to the man in a flat, mechanical voice, "This...is...not...productive", with halting words. The man simply replied, "No". They both turned without head movement, very stiffly, and almost as one person. When they left, I never saw them anyplace else in the store again (which admittedly is no big deal since the store was crowded). It was creepy and had me unnerved for the rest of the day.