Recently, when we were at the vet, I made friends with one of the kittens in the display case they have there.
My human said we looked really cute - I had my nose to the glass, and was wagging my tail, and the kitten was rubbing up and down against the glass where I was standing. My human and I considered bringing the kitten home to live with us, but in the end we decided we aren't really set up for a kitten just now.
Tonight when we went for our walk we came across a cat who didn't run away from me. They usually run away from me, when I just want to play with them, and then I get all agitated because I want to catch up with them and my stoopid human won't let me.
But this cat didn't run away from me, it came up and sniffed me, and I sniffed it back. And I wagged my tail, and it kept turning around and brushing its tail across my nose, and we were becoming very good friends.
So I went into my "play with me" crouch, and bounced around a few times in a very inviting manner, and then... the cat hissed and tried to claw me! I couldn't believe it!
Of course, we vacated the vicinity immediately, but I kept on looking back at the cat, I couldn't quite believe what had happened - I'm such a gregarious little puppy, and all I wanted to do was make friends.
We passed the cat on our way back. It kept trying to lure me closer to it, but I wasn't going to be fooled as easily this time. My human patted it, and it didn't try to claw her - but I still didn't want to go near it. When we walked past I stayed as far away from it as my leash would let me.
I'm a little bit glad we're not really set up for a kitten right now.