Recently I caught myself
casually passing out the information of my period having started that
same day, to a person I didn't really know all that well, who had no
particular reason to be interested in my period-schedule, and, most
importantly, was of the male gender – the horror! He took the
information with a straight face (I don't honestly think he cared),
and since we're not prepubescent children, he ought to be acquainted
with the concept anyway. What interested me on an afterthought was
rather my own reaction of “oh sh.. oh well. He took it nicely, so
should be cool.” Why would I react that way?