Lmao! From the IMDB trivia section:

"On July 25, 1980, she had a rather strange opening night in "Butterflies Are Free" at the Burt Reynolds Dinner Theatre in Jupiter, Florida. An obese lady in the front row of tables began shouting insults at her and making bird calls during the performance. Later, this unidentified woman raised her dress and flashed the performers, causing co-star Dennis Christopher to take notice, although the character he was playing was a blind man. Nearby, a male patron began vomiting and, then, yet another patron fainted. Incredibly, the reviews for Farrah's performance were positive."

This had me laughing so hard! Poor Farrah, but good on her for the positive reviews of her performance!