Technology moves fast, and manners aren’t keeping up. In older times, real innovations were so few and far-between that social conventions had time to grow up around them. Did you know, for example, that there was a recommended greeting for use with the new-fangled telephone? People didn’t know what to say when they picked up the speaking-tube, so they were given a suggestion: “Ahoy!” I still do this today — it confuses the heck out of the telemarketers.

But now that tech is everywhere and ever evolving, people don’t know how to conduct themselves in public. The gizmos themselves are innocent, but the users are not. Here we list five gadgets that should be banned until people learn to use them.

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