Excellent presentation on sitting and shitting, marveled when traveling around both home and abroad the amazing structures one may walk into, fathoming out how they work, yup where to pull the chain.

Implement themselves in design only you worked out quickly, you normally had to, flushing was always a game of hide and seek.

Now I regret not taking photo's on many of these amazing inventions, oh we still have some around that would make your teeth curl.

Thoroughly enjoyed your off-beat topic!