"Crest has been shown to be an effective decay-preventive dentifrice when used in a conscientiously applied program of oral hygiene and regular professional care" 30 years after these commercials ran, I still have this phrase ingrained in my memory.

What about the Plymouth Reliant? Who wants a car that's reliant? Wouldn't you prefer one that was reliable?What the hell was it reliant on?Constant service and frequent oil replenishment?

Two of the worst marketing moves ever made: 1) In about 1979,Braniff Airlines ran an ad campaign making fun of plane crashes.Ads showed hysterical passengers being carried onto the plane wearing crash-helmets,pilots entering the plane with parachutes on their backs,etc.Concept apparently was "Hey! There are thousands of potential customers who don't fly because of their fear! Let's help them laugh at disaster!" 2)In 1970 Schlitz Beer was the third largest brand in America,when they decided to scrap the current recipe and introduce an entirely new-tasting Schlitz.A year later they tried to go back to the original formula in the face of mass consumer desertion.Two years later they were bankrupt.