At my 10th high school reunion (years ago) I was trying to describe the work I did to some classmate whose name I'd forgotten; he didn't grasp much of what I was saying about computer systems.

Finally a light dawned and he said "oh, you're a Bit Head!" and started laughing.

Kinda hard for me to know how reply since he had just said he still worked at the Burger King...
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"If they can't picture me with a knife, forcing them to strip in an alley, I don't want any part of it. It's humiliating." - windsock