disturbing facts of life

a giant cockroach escaped out from the drain in my shower and
visited me while taking a shower. normally i do not get freaked out by
bugs, but there is something about being naked that makes you very
vulnerable....so I freaked and squished him with a shampoo bottle. Anyway,
it got me thinking about how bizarre it is that a bug who is much larger
than my thumb can somehow crawl its way out of a drain with openings much
smaller than my thumb.... no wonder these things have lived for eons.