When the mercenary comes into the tavern to the delivery the witches' message, Hansel gently guides Ben in front of where he is sitting while everyone is enraptured by what is happening. Finally, the guy explodes and sends blood and flesh onto everyone but Hansel. Ben's reaction only adds to it.
Ben: That was awesome.
Gretel's only reaction when she's drenched in blood and gore is to sigh and comment on how much she hates it when they do that trick.
Hansel's pointless dive roll into the candy house, where the siblings first encountered a witch, in order to battle Muriel. She welcomes him inside with a shovel to the face.
Ben going a bit too far in cleaning the filth off of Gretel. And then Gretel finds that he has a Stalker Shrine, complete with a painting of her.
During a shot at the beginning of the film, we see that the milk bottles in the film have images attached to them of missing children.