Few can take on the Mouse and walk away, but that's exactly what DJ Joel Zimmerman, better known as Deadmau5, did.
As a Canadian, Deadmau5 had no problem setting up his look back home. But when he tried to register the shape of his headwear in America, Disney filed a suit, claiming the look was "nearly identical in appearance, connotation, and overall commercial impression to Disney's Mouse Ears Marks."
Deadmau5 took to Twitter to defend himself, saying "Lawyer up Mickey," and that "Disney thinks you might confuse an established electronic musician/performer with a cartoon mouse."
By 2015, though, Disney and Deadmau5 settled, and Disney withdrew its complaint.