What's up pussy cat

What's up pussy cat 

I just don't understand cats, what's there problem..you meet another doggy. You sniff each others nose..then you sniff there ass..you know, just to see what they have been eating recently. But you try doing that with a cat. You sniff there nose and they spit in your face..then you try sniffing they ass and there all paws and claws. What is there problem.