My mom sent me an email yesterday: she recently bought Harry Potter 6, & she’s re-reading numbers 1-5 before reading 6. Now that’s willpower, man. I thought about re-reading 1-5, for about 10 seconds. Then I actually picked up #6 & opened it & that idea went right out the window. Anyway, she emailed me because something was bothering her:

The Ministry goes to a great deal of trouble to keep Muggles unaware of the magical goings-on of wizards & witches. How, then is it possible that Hermoine’s parents accompany her to Platform 9 ¾ and she is allowed to bring them back goodies from the stores in Hogsmeade? What explanation can they give to their friends as to where their daughter goes to school and what her talents actually are (although they appear quite proud of her) We know how the Dursleys respond, but aren’t there other half- and whole-muggle-borns? Has there ever been an explanation of how Muggles can produce magical children? (recessive genes, no doubt)

Anyone have any explanation for this? I suggested a non-disclosure agreement.