"There is no evidence that that shit is aware of the damage it is doing to peoples shoes and delicate nostrils or if it is doing any good for the local fauna (last bit is so I don't get in trouble with Steve!)"

Eat shit. 150,000,000 flies can't be wrong. (Toilet wall, Imperial College union bar, 1969)

The other bon mot I remember from the same location, inside the cubicle this time, on the door in front of you as you sat, was "Shit hard. It's a long way to the refectory."