So much for turning over a new leaf...

Lindsay Lohan's bender of good behavior lasted a mere 24 hours. After showing up early and learning all her lines on day one of shooting her guest spot on Charlie Sheen's Anger Management, she fell apart for the rest of her time on-set. The cast and crew of the show were reportedly all annoyed with LiLo by the time shooting was finished, with one going so far as to call her a highly unflattering name.

"She was a colossal pain in the ass," said a source to E! News. "It's a shame, because when she actually gets on camera she is good and has comedic timing. But she comes with so much luggage it's not worth it."

The source confirmed that the first day of production was smooth sailing, but Lindsay did a total 180 on day two. She allegedly sat in her trailer and stalled taping throughout the day, then left to attend her boyfriend's concert before finishing all her scenes. At one point, crew members were "so pissed they almost called police to escort her" off the set.

Related Article: Lindsay Lohan Goes On A One-Day Bender Of Good Behavior

Related Article: Aspiring Meteorologist Lindsay Lohan Renames Hurricane Sandy "Sally"

"She held everyone hostage," said the insider. "From the moment she arrived yesterday, she did nothing but hold up the production."

Lindsay was only supposed to tape for two days, but had to come back to the set yesterday in order to finish her scenes. She reportedly stayed for a couple of hours and then left.

However, Lindsay's team is denying any accusations of bad behavior. And if the cast and crew is pissed at LiLo, she obviously didn't get the memo. "I just had such a wonderful day on set of #angermanagement with @charliesheen & @LIGHTAARON @SaveTheSociety @jazejazz7 and the entire crew!" she tweeted yesterday.

Her reign of terror is now set to go international as well. The actress is in Brazil for a three day appearance gig that is reportedly paying her $100,000.

What do you think of Lindsay's alleged behavior on set?

Photos courtesy of Getty Images and FX