William Marston invented the lie detector and created the Wonder Woman comic book. He also did a series of ads for Gillette Blue Blades in the 30's: http://ift.tt/1h1Yd9p
He claims that people who were shaving with any other brand, but their trusted Gillette Blue Blade could subconsciously tell and get emotionally upset, as picked up by the lie detector, even whey they were not told what blade they were shaving with........Not sure if that shows the love of a favorite blade, or the heights of Gillette's marketing.....I'm sure many feather users could tell the difference........
He claims that people who were shaving with any other brand, but their trusted Gillette Blue Blade could subconsciously tell and get emotionally upset, as picked up by the lie detector, even whey they were not told what blade they were shaving with........Not sure if that shows the love of a favorite blade, or the heights of Gillette's marketing.....I'm sure many feather users could tell the difference........