This image released by HBO shows John Oliver, host of "Last Week Tonight with John Oliver." Oliver said Sunday that he'd achieved all he'd wanted for the show by having an Australian animal hospital's special ward to treat a chlamydia outbreak among koalas named for him. He said, "goodbye, forever, everyone," as stagehands broke up his set around him. That inspired a wave of social media posts among fans wondering if he was serious. (Eric Liebowitz/HBO via AP)
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