Sean Hannity is not going away.Well, scratch that. He is going away — but only on an already-planned vacation, and only briefly. Then, after that, you can be sure: He is not going away.That, at least, is the word from Hannity, who lost several advertisers this week after repeatedly pushing a baseless conspiracy retracted Tuesday by his employer, Fox News Channel. Hannity took the second half of the week off, but before he did, he cautioned his Twitter followers not to worry:His network also backed him up in a statement."Like the rest of the country, Sean Hannity is taking a vacation for Memorial Day weekend and will be back on Tuesday," Fox said, adding: "Those who suggest otherwise are going to look foolish."If that seems like quite a to-do for an annual vacation taken over a holiday weekend, one need just hearken back to last month, when another of the network's marquee pundits answered an advertiser backlash by taking a long-planned trip. Bill O'Reilly's own vacation announcement turned out to be the final words he would speak at the desk of the The O'Reilly Factor.Before O'Reilly could even return, Fox parted ways with its longtime superstar, who continues to grapple with allegations of sexual harassment — allegations he steadfastly denies as "unfounded claims."Organizations such as Media Matters for America, the liberal-leaning watchdog group that has pushed for Hannity's ouster, would like to see that pattern repeated. As yet, though, far fewer advertisers have abandoned Hannity than O'Reilly, who before his ouster lost the support of dozens of companies — more than half his advertisers, according to a study by the ad-tracking firm iSpot.tv that was cited by The New York Times.To date, just a handful of advertisers have pulled their commercials from Hannity's show for pushing a story that Fox says "was not initially subjected to the high degree of editorial scrutiny we require for all our reporting."Earlier this week, NPR's David Folkenflik explained the story at the crux of the controversy: