I think these people who walk around with bluetooth earpieces in their ears are pretty silly looking. I see them on the street, at TKD and in their cars with this thing in their ear. Not talking to anyone, but they are so damn important that they need the phone stuck in their ear because someone MAY call them AT ANY SECOND!
There are two parents at Tae Kwon Do which always have it in their ear. And, seeing both of them, twice a week, for months I have yet to see them actually talking on it. It just sits in their oh-so-important ears. Take the thing out of your ear, you look stupid and you're not that important.
