Surely the following site is what the internet was made for.
Simply input your postcode plus the last time you did a poo, and it'll show you the exact route of your plop in estimated realtime, tracking the direction and duration of your motion as it wends its merry way through your local sewer system. Mine took 7.97 miles over a few hours and ended up in a treatment plant in Billingham. Poor poo. And poor Billingham too, I'd just eaten Mexican.
Where does yours end up?
And yes, I'm aware this is a shit thread. http://www.flushtracker.com/