Now that is something one can consider funny, but making fun of someone because they have no idea what they are doing is not funny. Sure, one can chuckle to himself and help the person out, but exploiting it and sharing it with others like you, having everyone laugh at this person, it will only make the person not want to know more about computers and how to use them.
When you laugh at someone who has no idea what they're doing, all you are doing is discriminating them and making them feel small, and they can't help themselves, because they have no idea what they are doing wrong.
Jent my two cents.
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"If it doesn't work, hit it with a hammer."