Dr. Frankenstein
There are a lot of people who are very sure of themselves when they try to correct others about Frankenstein. In most cases, they are correct because a lot of people believe Frankenstein is the monster, when in reality, the doctor who built him is the one who is responsible for his creation.
When it comes to this particular joke, the person who is trying to change it is the one who is in the wrong, and the person who initially brought it up was completely aware of what he was referring to when he said it. However, the person who is attempting to correct it is doing it incorrectly.