'Amateur hour': Critics pile on Sean Hannity after he's busted vaping on-air

Fox News personality Sean Hannity had a literal "uh-oh" moment on Thursday night when cameras opened on him with his head down, glasses on and vape device still in his mouth.

Alerted that he was on camera, Hannity yanked his vape bar from his mouth, pulled something from his ear, looked at the camera and uttered "uh-oh" with his glasses still askew on his face.

That moment was caught for posterity on Twitter and, naturally, Hannity became the brunt of jokes -- as you can see below: