I had a song once that was blatantly ripped off. One by one, various artists began stealing from it. In time, there was a flood of them. I've lost track of them all.
They didn't actually steal any of the notes, lyrics, rhythms, chords, etc. They stole the empty space in between the notes. Imagine my surprise when I turned on the radio and heard a song that brazenly flaunted an absence of sound between its notes!
I was stunned. My jaw dangled, more useless than usual, as I pondered this violation of my rights. I wondered, "What else have they stolen?" I listened to some jazz and found, to my horror, that they featured chords I had created by accident as I tried to pound out songs on a piano. Granted, when I played them, they were mistakes, but still!
I tried to explain this to a punk guitarist, but he just encouraged me to lie still until the bleeding stopped and the police arrived.