That's too funny. I wish this "virus" actually existed. It would be quite interesting to study, and I bet the virus under a microscope would look like a cupcake, simply because that's the most "kawaii" thing in existence. xD
No, my bad habit is Inuyasha. I'll tell myself that I'm over the show, and then one of the people I watch will post some fanart or I'll just stumble on it and suddenly I want to go back and watch the show again.