I remember my first Bluetooth headset review. I was skeptical. I felt like a giant asshole when I wore it. And I'll say this much - my opinion on them hasn't changed much. Wearing one outside of a moving vehicle or a closed office just strikes me as rude. Is it any way, shape, or form harming me when people do it? No, but neither are Crocs, and I think many of us have "feelings" about them.