Bath

A bath was a method of cleansing.

After Chris was found by his family, his Mam gave him a bath to warm him up. (PROSE: Fanboys)

It was rumoured that Elizabeth Bathory slaughtered over six hundred people and bathed in their blood. (PROSE: Managra)

One TARDIS bathroom had a large bath with many alien plants hanging around it. The Fourth Doctor told Bryony Mailer he always did his best thinking in the bath. (PROSE: The Drosten's Curse)

Sasha tried to kill Billy by boiling him in the bath, but Gwen Cooper saved him. (PROSE: First Born)

During the global afforestation of the Earth in the early 21st century, a minister broadcast a message telling people to fill their baths, sinks and buckets with fresh water. (TV: In the Forest of the Night)

Reef Holloway suffered from pedal immersion addiction, meaning he had to have an herbal foot bath every four or five hours. (COMIC: Interstellar Overdrive)

On an celebrity episode of Bear With Me, a bear got into the bath. This was enjoyed by both the Ninth Doctor and Lynda Moss. (TV: Bad Wolf)

Behind the scenes

 * One of the questions in the titular Test in the quiz game UNIT Initiation Test from Doctor Who Annual 2006 (not considered a valid source on this Wiki) was how long it would take two Autons to fill a bathtub using one tap if it took one Auton ten minutes to fill the same tub using both taps.