Sounds like some people have their heads up their butts.

Which is an exciting point to make though not scientifically directed, but great proctology.  If your goal is to aviod anal cancer than congratulations.  THIS COULD BE VERY IMPORTANT and irrefutable.  As when food is delivered we expect certian results such as stools.  Oddly we are low on dirrect evidence concerning the stools while the cancer is likely the cause.  It is consistent with all data on the anus.  Research boards have examined the question so absolute patterns are in the books.  Even for the best times during barbeque parties.