"If she really can tell the future, she's not very good at it," Hermione sniffed.
"Still, the Divination teacher being able to do telling the future isn't really required, right?" Ron asked. "I know that our Charms teacher is really good at Charms, and our Potions teacher is really good at Potions, but our History teacher just has to know a lot about History. He doesn't have to actually be able to go back in time."
"He does have to be from the past," Harry pointed out.
"Yeah, but everyone's from the past," Ron countered.
"Behold!" Neville announced suddenly. "I've travelled here from the year nineteen-eighty!"
He paused. "You know. The slow way."
"In that case, I've come here from the year nineteen seventy-nine," Hermione announced.
"What's it like there?" Harry asked.
"I don't remember many of the details, it was a while ago," she told him.
Ron started sniggering, and that set them all off.