I had to laugh at the comment about even thinking about getting another cat makes one show up.
I had been wanting a kitten for awhile, but knew we didn't really NEED another cat. I told my husband that if a kitten just showed up or fell into our lap somehow I would keep it; but I told him I would not go actively look for a kitten.
Less than two weeks later, our neighbors found a 5-6 week old kitten, it was covered with fleas and almost dead from dehydration. When I first saw him, I thought he was going to die. He was tiny, lethargic, and very unwell. They kept him two days, and then he came to our house. His name is Neo, he is very active, and sleeps by my feet at night.
Yep, I wished for a kitten, and one just showed up.