Cats are great at one thing, and one thing only: being cute. Even after murdering mice and pissing on your curtains, cats know how to make you say "aww" by doing something insanely adorable, like hanging out in the bathroom sink. If you're a fan of the species, Cats in Sinks will definitely reach your soft spot and make you want to adopt today if you don't already own one (or three). Dogs are cool, but put them in a sink and it's just gross. This Tumblr blog got it right.