holy shit Klaus Kinski was fucked up:
He filled his apartment (adjacent to the one a young Werner Herzog lived in with his mother) with dead leaves, and never wore clothes
One time (same building), he locked himself in the shared bathroom for two days and broke everything inside it
Once took a running start at the door to the Herzog's apartment and knocked it off its hinges while the family was having dinner, foaming at the mouth and flailing, screaming KLAAAAAARA, YOUUU PIGGG!!! (demonstrated by Herzog in a hilarious high voice) because she didn't iron his shirt collars neatly.
One day a theater critic came for dinner, and he said he enjoyed Kinski's performance in a recent play, calling him excellent and extraordinary. Kinski threw two hot potatoes and some cutlery at his face and screamed "I WAS NOT EXCELLENT! I WAS NOT EXTRAORDINARY! I WAS MONUMENTAL! I WAS EPOCHAL!"
All of these stories were related in the first 9 minutes of the film about him.