When I was about 9 or so, I was walking around the neighborhood, just walking along, getting in a bit of fresh air and sun.
My babysitter, Cassandra, had a cat named Tiger, and he was sitting outside of her house. I saw him, and decided to go and pet him.
So, I come up to him, and I say, "Hey Tiger", and proceed to pet him. I had to bend down to do this, and I patted him on the head. He was fine...for about a minute, and then suddenly, I guess he had quite about enough, so he jumped up, and scratched both sides of my neck! I jumped back, and he ran off. I was left wondering, "WTF?!?!?!?!?!" and still wondering WTF to this day!!!