u guys should cool it,
something so little as this shouldn't set either one off and the better thing that a MAN should do is just leave it alone.
I know what was going on, Don_Joffe was simply stating that to people who know what pupils are, it's common sense. The thing is that not everyone knows these things despite the fact that it should be well known.
given age, location, or any other things that may hinder them from ever knowing about it prior, it's hard to judge whether or not they should know it. True as it may be that everyone knows what they should be, the fact is that it doesn't work that way.
a simple step in the right direction like the first person mentioned (using google) is the better step, not pointing out the lack of knowledge one thinks everyone should know.
and to end it guys, seriously... grow up