When ever i read the scene where Randyll Tarly takes Sam into the forest and threatens to cut out his heart if he doesnÂ´t go to the wall, i think of the scene in snow white, where the evil queen, sends a hunter out into the forest to cut out snow whites heart. In the scene Randyl cuts out the heart of an animal, to prove what would happen to Sam if he doesnÂ´t go to the wall. A dear i think. In the fairy tale, the hunter cut out the heart of a dear, and bring it back to the evil queen to prove snow white is dead. And the sigil of House Tarly is a huntsman. The scenes are just similar. I think it could be inspiration.