I used to have a cat named Fluss. Great cat. Top ten of all cats, probably. He liked to lay across my shoulders (anyone's shoulders, actually) with his legs dangling on either side of my neck.
I would occasionally sit at the desk with him like this. Once, he got startled and jumped off, nudging a couple of faders. Presto, the song sounded better.
He only did it once, though. I had to work it out on my own after that.