What to expect from cats:
1)Kitty will always steal the show. If you post a video with the cat, 9 times out of 10, kitty will be the real star. Almost all of your comments will be about kitty.
2)Cats are masters of the Xanatos gambit. For those who are unfamiliar, basically it's a scenario that no matter what, the planner will always win. They will hiss and bite if they don't like you, while doting on everyone else. If any human fights back, then he will look like an unreasonable bully though if you're trying to take on something that weighs at least a hundredth less than you, you kind of are. If they don't, then the human will be a nervous wreck waiting for 'demon cat' and kitty wins there too.
3)Cats are weird. Get an extremely expensive toy and they'll play with packing material. They can get into strange positions, small spaces, some like really weird things (or at least to chew on them), some even like water. Then there's the 'no, no, no, no' cat. I don't know what's weirder; that