Not this thing again ... Dark matter is in a sense the opposite of an invisible dragon in your garage. Nobody wants to have an unexplained, invisible cloud of

Not this thing again ... Dark matter is in a sense the opposite of an invisible dragon in your garage. Nobody wants to have an unexplained, invisible cloud of particles hanging around. It's as if every time you get into your garage you can smell sulfur, you see huge talon marks every once in a while, along with half-eaten carcasses, and you occasionally find your thermometer melted into a pool of plastic. However you hate the idea as a homeowner, the only available conclusion is that there's an invisible thingy in your garage made of god-knows-what that does things that cannot be explained unless you assume its existence. So you call this thing "that invisible thingy in my garage," and next thing you know, everybody's calling you names and talking of phlogiston and ether.