In Petunia's mind, "that awful boy" killed her sister. She didn't hate him because he was a wizard but because in her mind he took from her her only sister. Petunia loved Lily, no matter what she feigned.
Someone from San Antonio, Texas, US posted a whisper, which reads "There's this shining new technology called a turn signal. You flip a switch and it make a magic little light blinks so other drivers know you're turning or switching lanes.