You can’t keep Keith Olbermann quiet for long. The former Countdown host broke his three-day silence Monday, taking to Twitter to thank his friends for their support. “My humble thanks to all the Friends of Keith for the many kind words,” he wrote. “The reports of the death of my career are greatly exaggerated.” Meanwhile, Olbermann’s nemesis at Fox News, Glenn Beck, said he wasn’t surprised by the news. Beck called Olbermann “impossible to work with,” and predicted the left-leaning network would go in a new direction without him. “You can handle mediocre ratings if the guy’s not a total pain in the ass … but from every indication, Keith Olbermann is the biggest pain in the ass in the world.” Olbermann’s exit contract bars him from returning to television for at least six months, but his Twitter post suggested he is considering a comeback—something Beck said he looked forward to.