Marge Dursley: You mustn't blame yourself about how this one turned out. It's all to do with blood. Bad blood will out. What is it the boy's father did, Petunia?
Petunia Dursley: Nothing. He didn't work. He was unemployed.
Marge Dursley: And a drunk too, no doubt?
Harry Potter: That's a lie.
Marge Dursley: What did you say?
Harry Potter: My dad wasn't a drunk.
(A glass explodes in Marge's hand, she later resumes the topic...)
Marge Dursley: Actually, it's nothing to do with the father. It's all to do with the mother. You see it all the time with dogs. If something's wrong with the b*tch, then something's wrong with the pup.
Harry Potter: Shut up! Shut up!
Marge Dursley (raising her finger): Right. Let me tell you...
(Her finger starts to blow up and her body soon follows ending in Marge floating away...)
Harry Potter: You knew? You knew all along and you never told me?
Petunia Dursley: Of course we knew. How could you not be? My perfect sister being who she was. My mother and father were so proud the day she got her letter. "We have a witch in the family. Isn't it wonderful?" I was the only one to see her for what she was. A freak! Then she met that Potter, and then she had you... and I knew you would be the same. Just as strange, just as... abnormal. And then, if you please, she went and got herself blown up! And we got landed with you.