Fine salt contains anti-binding agents. That’s the point of salt grinders.

Fine salt contains anti-binding agents. That’s the point of salt grinders.

Yeah, it’s the time we see that he didn’t go crazy after Horsing Around, he always had some emotional problems.

It does explain why they hadn’t dealt with Littlefinger until this point. Without gathering all the Lords of the Vale together they couldn’t stop him without also releasing the Knights of the Vale to return home.