For the second week in a row, Bill Maher had some fun comparing Charlie Sheen to Sarah Palin on 'Real Time With Bill Maher' (Friday, 10PM ET on HBO.) This time, Maher did so during his "New Rule" segment, which he kicked off by showing a photo from one of Sheen's latest web-rants, in which the actor had been wearing a pair of Ricky Vaughn-like glasses

"New rule: Image isn't everything. It takes more than some clean clothes and a pair of nerd glasses to take an unemployed ego-lunatic and turn them into ... " Maher proclaimed, as the background photo switched from Sheen wearing glasses to one of the always-bespectacled Sarah Palin. "Oh, never mind."

All this comparing of Sheen to Palin makes us wonder what what would happen if Sheen also decided to extend his 15 mega-minutes by dangling a presidential run.