I was having trouble with my computer. So I called Harold, the computer guy, to come over. Harold clicked a couple of buttons and solved the problem. He gave me a bill for a minimum service call.
As he was walking away, I called after him, "So, what was wrong?"
He replied, "It was an 'ID ten T' error."
I didn't want to appear stupid, but I nonetheless inquired, "An ID ten T Error? What's that, in case I need to fix it again?"
Harold grinned. "Haven't you ever heard of an ID ten T error before?"
"No," I replied.
"Write it down," he said, "and I think you'll figure it out."
So I wrote it down.
I D 1 0 T
I used to like Harold...
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