Alas, the one I got a few weeks ago hung up on me when, after trying to get me to say what version of Windows I was running, I asked, "what's a, an 'operating s

Alas, the one I got a few weeks ago hung up on me when, after trying to get me to say what version of Windows I was running, I asked, "what's a, an 'operating system'?" Obviously there's a fine line to tread between playing dumb enough to keep them on the hook and playing too dumb to be useful. (Haven't had one of them call since, alas: refining your technique is hard if you don't get enough practice calls.)