Amy's seen a lot of weird in her life, truthfully. It's sort of part and parcel of travelling with the Doctor, which is why when she comes across a bloke crouched over some little furry thing in the woods, calling himself 'Mum', she doesn't even do a double-take (at least, she doesn't once she clarifies that it's not her Doctor, because that is the sort of thing he'd do).

"What happened?" she asks, a bit more concerned with whatever injury has befallen the animal instead of a man calling himself Mum and tending to it like a baby. "Did something do that? The fireflies or something?"