I love funny ads! Usually, something unreal and funny happens that keeps you wondering about the relationship between the ad and the actual product. At the end, this confusion attaches to your brain for a long time. I would certainly buy a product just because the advertisement gave me a good laugh. One of my favourite is about astronauts being attached by a monster. The monster gets rid of two and one astronaut hides. Then, this astronaut passes gas because he ate bean (the advertised product), and the monster finds him.
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