• The film “Psycho” was the first movie to show a toilet flushing – the scene caused an inpouring of complaints about indecency.
• Over $100,000 US dollars was spent on a study to determine whether most people put their toilet paper on the holder with the flap in front or behind; the answer: three out of four people have the flap in the front.
• The average person spends three whole years of their life sitting on the toilet (That is over 26,297 hours – and coincidentally the same amount of time the average person spends waiting at red lights)
• The first toilet cubicle in a row is the least used. (I have been taking advantage of this little known fact for years and find it to be more often then not the cleanest stall)
• An estimated 2.6 billion people worldwide do not have access to proper toilet facilities, particularly in rural areas of China and India. Lack of suitable toilets and sanitation kills approximately 1.8 million people a year, many of them children.
• The toilet is flushed more times during the super bowl halftime than at any time during the year.
• The toilet handle in a public restroom can have up to 40,000 germs per square inch.
• 90% of pharmaceuticals taken by people are excreted through urination. Therefore our sewer systems contain heavy doses of drugs. A recent study by the EPA has found fish containing trace amounts of estrogen, cholesterol-lowering drugs, pain relievers, antibiotics, caffeine and even anti-depressants.
• While he didn’t invent the toilet, Thomas Crapper perfected the siphon flush system we use today. He was born in the village of Thorne – which is an anagram of throne.
• In a 1992 survey, British public toilets were voted the worst in the world. Following quickly behind were Thailand, Greece, and France.

For a complete list, go here.