Most people don't know their own height and think it's great when you ask them to measure them...what? I don't know where you hangout, but I think you should broaden your horizons. No offense intended of course. I've never met a person it my life that didn't know their own height, and I hope I never do. I mean, outside of a child who doesn't know any better, but I'm not going around asking kids how tall they are either.