If you have a cat I have a strong recommendation to make.
Do not, under any circumstances, inadvertently startle your cat when she is sitting in the vee of your legs and you're both nice and comfortable!!
I do not know what the heck I did, all I knew that was Phoebe was leaping and spinning off my lap claws out and eyes startled!! I have two scratches on my hand so I must have been just about to stroke her when I must have touched her in the wrong way or she was so deeply asleep and dreaming that anything was going to set her off - I simply do not know!!
What I do know is that we were both very startled, although quite who was more startled I don't know!! And then I started laughing!!