Pretty much anybody who fixes computers (read NOT programmers) and is good at it, carries one.
I carry a Gerber model something or other. I couldn't do my job without it. It's great, because I don't get the flack about it that I get when I carry my Benchmade Stryker. I'm getting increasingly weary of where and when I take out my one hander to do a job.
:::imitating boy from 6th sense:::
"I see scared people."
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Stay back! or I'll...OUCH...cut myself.