Cervantes had to deal with a ripoff of Don Quixote while he was writing the second part of Don Quixote, after publishing part I. It even makes up part of the pl

Cervantes had to deal with a ripoff of Don Quixote while he was writing the second part of Don Quixote, after publishing part I. It even makes up part of the plot of part II. Another author published what they claimed to be part II. It's a different form of IP infringement than simple unauthorized duplication of a work, but it's been around for a long time.