And a good thing he did, too, as the remains of a shotgun-carrying Nazi could be seen in the debris just inside, having been shredded by the fragments of wall, as they exploded. That said, when he did peer into the hole, he'd have to quickly jump back, as a shotgun blast fills the area where his head was only a moment before. And judging from the scorch marks the round left in the wood, these weren't ordinary, non-magical guns, either.