I've been following this thread with a bit of interest, having witnessed the same sort of thing near my former east-coast Canadian home (Halifax Harbour).
A propos the "Poo Pipe", I am reminded of this very old joke from my Engineering School days, which I managed to dredge out of the archive ....
----------------------------------------------------------------------------------------------------------
A group of engineers was discussing the human body, and what sort of engineer must have designed it.
An Electrical engineer thought it must have been one from his discipline, after all - look at the wondrous
nervous system, transmitting all sorts of information, processing it and the like.
A Mechanical engineer felt no, it must be a Mechanical engineer, since the body is amazingly articulated,
can climb stairs, manipulate things so well (opposable thumbs and all that), and so forth.
Another engineer (probably a Chem, but it might have been another) claimed the human body MUST have
been designed by a Civil engineer.
Why?
It must have been a Civil engineer who designed the human body ... after all, who ELSE but a Civil engineer
would run waste disposal pipelines right through the middle of a recreation area?
----------------------------------------------------------------------------------------------------------
(With apologies to Civil engineers everywhere
)