Finnick nods in return. He has relaxed a lot since they got onto a topic less about him and his capability to act. "There are physical things, like collars and magical tethers, that will keep the bond in place and strengthen it. It might not necessarily break the bond if you remove it - there are lots of ways to maintain a bond without constantly thinking about it but witches seem to like using physical objects to focus their magic. The cat, specifically... if he has been inherited like you said, Samantha may not have the means to keep him bound without that collar, since his contract would have been with some other witch."