3M was so sure their Security Glass was unbreakable, they put a large stack of cash behind it and shoved it in a bus stop. Great advertisement, right?
Actually, it was only $500 of real currency stacked on top of fake money, and people could only use their feet to try to break it. A security guard was present to make sure no one broke the rules and that people couldn’t get to keep the money if they broke it.
السؤال لو كانت الدعايه عندنا اشراح ايصير ؟