My favorite is "perky Katie Couric", during the Washington, D.C. shootings some years ago, telling a SWAT officer that she understood that what made the shooter's gun so deadly was because it had "spirals in the barrel". The guy's face showed he had a major WTF moment, but just tactfully said "Yes.". Rumor has it he ruptured his sides afterward from laughing so much.
LOL, is that like the shoulder thing that goes up? ;) Liberals are the original flat worlders.