Attention talk show bookers: don’t make Joan Rivers angry. You won’t like her when she’s angry.

After being abruptly canceled from a scheduled appeared on Fox & Friends, which came on the heels of Rivers making a few comments about one Sarah Palin, the gloves came off and the claws came out.

Rivers previously said that Palin should “go to another planet,” and sided with critics who blame the Tucson shooting on the former Alaska governor.

According to Joan, she and daughter Melissa Rivers were canceled from this Thursday’s Fox & Friends shortly after she made those comments. Judy Katz, who represents Rivers, said she received a call from one of the show’s booking producers. Katz claims the producer told her that Rivers was getting the boot from the Friendly program because of the comments she made about Sarah Palin.

But FOX says it just isn’t true. Blaming the “volume of news topics” and an already “full show,” not to mention a booker who made a mistake, the network says Rivers was supposed to be bumped to Friday, not canceled altogether. “We’re in the process of booking her on an upcoming show,” said Fox & Friends executive producer Lauren Petterson.

Too bad Joan Rivers is already booked on Friday. Katz says that she’ll work with the show to get Rivers scheduled for a future date. “They will definitely go on,” she said of the Rivers mother-daughter duo. “Because they want to promote their reality show.”

Then again, maybe not. Rivers told members of the press that FOX News can “go [expletive deleted] themselves,” following the incident.