I was a part time postman during my first years at college. Hence I'll take cats over dogs any time. Even the most vicious evil humongous cat will still run from a human saying "boo!". They might hiss at you and try to claw you (when you get too close to them), but they will flee when threatened. I have had some treatment from "loyal guard dogs" however that dog lovers should be happy that the Netherlands restricts hand guns. I was lucky that one time, a certain dog was too stupid to know the difference between my post bag and a genuine part of my anatomy, or I'd be disfigured because some people think it is nice for the dog to be running around on a nice summer's day.
The small ones, like yorkshire terriers, are so stupid that I once dragged one for 30 yards while it was attached to my trousers. I ignored it at first, but could have killed it by stepping on it. I actually stomped the ground hard right next to its head to scare it off, and still it growled and kept it's jaws around my trouserleg.
Another time a dog growled but moved back as I simply walked towards him and the letterbox (I do not fear dogs), so I thought "finally, a smart dog". I deposited some letters in the letterbox, and turned around. Big mistake. This dog imediatly started running towards me. I immediatly turned to face the creature again, and it started backing off again (to about 6 metres/ 21 feet). Thinking I needed to prove my superiority I moved further toward it and started commanding "DOWN!" at the top of my voice. The dog got all submissive, and started making those sad sobs that dogs make. I kept looking it in the eye, and it must have known that I hated it. I moved back, looking over my shoulder to keep looking it in the eye. As soon as I was about 10 paces away from the yard of that house (and about 15 metres away from the dog), I turned my back... and the miserable creature started barking and growling and running towards me again. That sniveling, cowardly wretch followed me in such a fashion for about 400 metres (quarter of a mile), every time backing off and running toward me. Note though, that after about half that distance, I got so fed up, and so ticked off, I wished to harm that dog. Bad. I started kicking toward it. I had one of my long, thin straight "pen" keys in my fist and I was intending to stab the dog with it. But it stayed just... out... of... reach. I have been angry in my life, but always had the composure to just walk away. From this, I couldn't. The beast kept hounding me. I kept yelling and commanding "DOWN!" furiously, and started swearing like a sailor. I wished one of the other houses had a dog so perhaps they could fight and leave me to do my job. in the end, the annoying fiend just started running back home. I never saw that dog again though. I think some of the neighbours must have complained when they saw that dog's aggressive behaviour and thought "I have kids playing in the street". Perhaps the dog met someone with a longer reach than I. I guess I'll never know.
Now, anyone who has been seriously threatened with disfigurement or even death by a poorly raised cat? Yeah, thought not. Perhaps police dogs and seeing eye dogs are useful, but privately raised dogs have 2.9 strikes against them from the moment I meet them.