Quote from : Harry Potter and the Sorcerer's Stone Movie

Uncle Vernon: He will not be going, I tell you! We swore when we took him in we'd put a stop to all this rubbish!
Harry: You knew? You knew all along and you never told me?
Aunt Petunia: 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! And 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.
Harry: Blown up? You told me my parents died in a car crash!
Hagrid: A car crash? A car crash kill Lily and James Potter?
Aunt Petunia: We had to say something.
Hagrid: It's an outrage! It's a scandal!
Uncle Vernon: He'll not be going!
Hagrid: Oh, and I suppose a great muggle like yourself's gonna stop him, are ya?