Of all the plagues that the Internet has visited upon us, among the most treacly is the “World’s Most Adorable/Cutest/ Smartest/Funniest/Most Wonderful Pets” genre. So it gives me great pleasure to offer up a small antidote.The subject of this column: animals behaving badly. Specifically, my cats. More specifically, Samantha the Cat, aka STC, and The Sally Cat, aka TSC.Now, my wife and I have never spent a dime purchasing house pets. OK, there was Banner, a clunky-looking 19-year-old Arabian mare Erin bought for $1. They had a great couple of years until the old gal (Banner, not Erin) could no longer stand and had to be euthanized and buried beside her favorite trail. But we never let her in the house, so that doesn’t count.