"I still say we should just wipe all their memories," the robed man said, "It's worked before."
"We tried that," the man in the impeccable black suit with dark sunglasses replied, "they must have left reminders for themselves somewhere."
"I'm afraid," the man in tweed said at last, "that we'll have to accept their demands. Not the public apology of course..."
"But how did they find out in the first place?" the robed man demanded. All three had wondered about that.
"I suppose," the man in tweed said slowly, "that we've all been underestimating the gas engineers for some time."
Author's Note: I don't own Harry Potter, Men in Black, or Buffy. Wouldn't it be cool if I did?