It might be they do not, hence the look of abject misery. When spider discovers that spiders don't have nipples either, the happy expression will fade.
(
Doctor When May your wife shat and chipper,
Wed 22 Aug 2012, 15:49,
archived)
A very sad story really
(
mediocre ha ha ha, you're reading this,
Wed 22 Aug 2012, 16:07,
archived)