Katherine Johnson gives a speech about how she has to travel half a mile just to use the bathroom because of the lack of coloured bathrooms in the office building she works in. She indicates that she isn't treated equally as as a result.
When the Mammoths are faced by the smell of the Neanderthals, they host a meeting where they discuss intervention. They decide that the humans must take after the animals and learn how to bathe themselves.
Minnie Jackson, an African-American maid, is the brunt of a dehumanizing conversation by the white families that employ her and her peers. One of the women, Hilly, refuses to use the bathroom because it has been used by a black maid. She suggests that the maid use an outhouse because "they carry different diseases." Hilly exacerbates the situation by telling her friends that she is pushing for an initiative to mandate that every white home has a separate bathroom for the colored folk.
The MythBusters have already debunked the myth that a few grams of caesium (Cs) or rubidium (Rb) will cause a hand grenade-sized explosion in a toilet. To further test the myth, they increase the amount to 2.5 kilograms and run the test in a bathtub with sodium (Na) and potassium (K).