Very tame scene. Two prostitutes, a man, and the man's maid have a dinner together, followed by some erotic peeing. Pee sounds are heard for about 10 seconds, and one woman's face is shown close-up as she hurries to finish before the guards see her. The killer uses a urinal in the men's room and is washing his hands when a second man comes in. The killer then slashes the other man's throat.
Nothing is seen or heard.
This is true to historical fact, but again the peeing is only mentioned and not seen or heard. He is allowed to take a minute-long pee by a bush while the kidnapper steals a car. Mariel Hemingway leads her boyfriend into the bathroom in the morning and then holds his cock as he pees. Julie Walters plays the madam of a brothel. He wants you to piddle on him.