In Switzerland, it is illegal to flush the toilet after 10 pm.
100 Mind-Blowing Flush Facts
Toilets usually flush in E flat. Another weird bathroom fun fact: most toilets flush in a certain key. Try listening for the key of E flat in your toilet at home.
The odds of getting a royal flush is 1 in 649,740. A straight flush is more likely in this case. Out of all the possible combinations, the chance of getting a single pair is 42%.
Dentists have recommended that a toothbrush be kept at least 6 feet (2 m) away from a toilet to avoid airborne particles resulting from the flush.