My cat is a dog in all but body. She begs for food, hates other cats, and only likes dogs.
My one kitty begs like a dog whenever anyone has food... she literally will sit by my chair at the table and whine and beg. It's kind of cute, but also VERY annoying at times...
My cat, Shoelace, stares at soda in cups. Just stares at it.
My two kitties are kind of complete spazzes, so they've done LOTS of weird things... lol.
Among Shadow's quirks: she drinks water from my dad's bathroom sink faucet (and she will only drink from that ONE faucet, and only if the drips are at just the right speed/size...); she takes her toy mice and tries to "teach them how to drink" from the faucet... or the water-bowl; and she tends to chirp alot like a bird rather than meow (although she likes to walk around the house at about 3am, yowling and meowing at the top of her lungs).
Ferry will knock over our kitchen garbage can, and drag garbage out that she then drags all over the kitchen floor. She also has this little blankie (it was a blanket my mom made for my baby dolls when I was like... 5.) that she LOVES to curl up under, but she's just SLIGHTLY too big to completely fit under it... lol, so there's always some part of her that sticks out... she also will walk around the house, wearing the blankie draped over her back, and she ends up leaving it somewhere, and I end up going "where's your blankie, Ferry???" at least once a day. And finally, Ferry is notorious for making very strange sounds while she's sleeping (wheezes, snores, grunts, squeaks, growls, grumbles, just to name a few).