Yeah, see that's the thing. Katrina says that Lav said his dad was a Muggle, but I bet it's not as bad as that. I mean, it's totally like Lav and Parvati to make it as horrible a story as they can think of. Katrina thinks he was probably a Muggleborn wizard and lost his job when the trouble started and so he didn't marry Corner's mum. And now I suppose he's in the camps somewhere. Whoever he was.