I have a male (Lou) and a female (Andy). Both really calm and friendly.
The first time Ex-wife came to my apartment, we woke in the morning to find every glass knocked over, and the toilet paper and paper towels shredded.  Andy was angry.
When we moved in together, Andy would often walk across the room, stop, hiss at Ex-wife, then keep on walking.  Andy HATED her.  I just assumed it was a female animal getting jealous.
After we split up, Andy became really friendly with my female guests, and especially my new wife.  When I met the new wife, I waved Andy in her face.  If Andy hadn't liked her, I may have stopped the relationship!
 
That cat is a better judge of character than I am.  Although they seem to consider me the authority and my wife just a 3rd cat.
 

My favorite is when they're just sitting there looking completely docile and then all of a sudden they jerk their heads up and look all wide eyed at the ceiling or the wall, yet there is nothing there. That used to freak me out back in my young stoner days. I'd be convinced they were seeing something otherworldly that I couldn't see.

I'm a crazy cat lady trapped in the mind of a stinky street punk trapped in the body of an 80yo woman.
 
Full circle?
 
But alas I am just barely able to take care of myself so as much as I would like to have a couple of the little fur goblins dancing around for my amusement that wouldn't be very responsible.
 
Ah, cats. Snotty, arrogant little jerks. Love 'em.

sharke
I work with animals, mainly dogs and cats, and I have to say I'm more afraid of cats than I am of dogs (even though I love 'em). Cats have a Jekyll and Hyde personality and the smallest of things can touch them off like a stick of dynamite. One minute: sweetness & hearts & flowers. The next minute: thunder & lightning & fireballs. 
 
There's a cat that I take care of quite frequently called Sweden. He's a rescue off the street and lives with a cat called Bella. Sweden is all over me when I come in - rubbing himself around my leg, purring like crazy and then wanting 10 minute belly rubs after he's eaten. But inevitably, the "switch" will flip. Usually the trigger is when I'm scooping out the litter tray in the back room, or when Bella (who's the clumsiest cat I've ever met) lands awkwardly from a height when she's playing. All of a sudden his ears go back, he gets this look in his eye and he just starts walking towards you like he's stalking prey. That's my cue to get the hell out of the apartment because otherwise he will literally tear my legs to shreds. One time he went for me as I was scooping the litter and I had to back into the bathroom and shut the door on his slashing claws. He sat outside the bathroom door and did that low kitty moan constantly for about 20 minutes. I was trapped. Every time I opened the door even slightly, the claws would come through and he'd go into a full scale war cry. I had no phone on me, no way of getting out. Eventually I had to be a bit nasty and push him away with a broom (which I was afraid to do because it might make him go outright thermonuclear). 
 
One time he chased me out of the front door and I was carrying a bag of trash. I had to close the door so quickly to escape his claws that I inadvertently closed the door on the trash. The next few seconds were characterized by an explosion of ripping, tearing and howling, and what I ended up with was basically the top of the trash bag with nothing else in it. I had that little mess to clear up on the next visit. 
 
I managed to capture his death stare one time when he "escorted" me out of the apartment. This cat seriously gives me the chills. But before the switch flips, he is such a cutie pie. 
 

The things we do for bucks.

sharke, there is something manic going on with that cat. I have never known one to be like that. Perhaps don't let her see you clean the litter box?
 
I could piss mine off when playing a little too rough but never any grudges or manic episodes. I had one that when I made a baby like voice he would jump up on my chest, hiss and slap my face. He was the best cat ever as long as I didn't make that sound.

Luckily, neither of mine are psycho.  Ones part dog, it seems.   

Still waiting to live in a place where "I" can have my own little furry friends.  The place before the one I live in now at least there was my friend's Boston Terrier who became my little buddy.  He goes crazy when I go over to visit and I miss him too.
 

 

Beepster
I'm a crazy cat lady trapped in the mind of a stinky street punk trapped in the body of an 80yo woman.
 
Full circle?
 
But alas I am just barely able to take care of myself so as much as I would like to have a couple of the little fur goblins dancing around for my amusement that wouldn't be very responsible.
 
Ah, cats. Snotty, arrogant little jerks. Love 'em.

Eh?

eph221
Eh?

That's racist against Canadians.
 
Please try to be more sensitive in the future.

Beepster

eph221
Eh?

That's racist against Canadians.
 
Please try to be more sensitive in the future.

That's 'cause da Beepster's on...