Someone from a neighboring office just walked in and started going on about his computer system getting a Trojan [1] and how his virus scanning software let it slip though and his IT guy mentioned something about getting some other virus scanning software and could we (“we” being the resident computer experts in our office building because “we” do “stuff” with computers) recommend software they should get.
“Um,” I said. “Don't use Windows?”
I don't think he heard me because he then asked me what I use.
“Not Windows,” I said.
“What?” From the tone, I gathered that such a statement has no validity in his world view and that everyone uses Windows. “What do you use, DOS (Disk Operating System)?”
“I use Linux,” I said, pointing to my workstation. “At home I use Macs. I just don't have virus problems.”
“So can you recommend anything?”
“I'm sorry, but I'm not the person to ask.”
He then said good-bye and walked away, mumbling something that I couldn't hear.