People who copy others ideas piss me off.
There are obviously times when advances in technology use some existing technology. This is most often the case. However, there are also instances where the "new" product is a direct rip off of an existing product. As an inventory, that pisses me off. The lengths inventors must go through to protect their IP is the most creativity stifling thing in the entire process of invention. Yet it is completely unavoidable because some asshole thinks money is more important than being a decent human being.
So here's to hoping the people at TMIL are abducted by ISIS and have their heads removed.