Complex sentence: They were ordered to leave both the Biltmore Hotel and the Commodore Hotel for their drunkenness; Zelda once jumped into the fountain at Union Square; when Dorothy Parker first met them, Zelda and Scott were sitting atop a taxi.
Split into simpler sentences: They were ordered to leave both the Biltmore Hotel and the Commodore Hotel for their drunkenness. Another example of their behavior is when Dorothy Parker first met them, Zelda and Scott were sitting atop a taxi.