Human beings are a creative, clever, and inventive species. We have solved all kinds of problems during our existence on Earth, such as dealing with nature, physical and health-related issues, food sustainability, mental and emotional issues, and much much more.

While it's true that Humans do come up with all kinds of ideas and solutions, it is also true that not all of them are necessarily good ones. Check out this list of things and ideas that people had or came up with that pretty much prove not every idea is a good idea, and more often than not they can leave you scratching your head wondering "what the heck were these people thinking?!"