The first time I offered my old TB a gingernut he thought I was trying to poison him, three times I offered it to him before he would risk a nibble, the whole time my trotter x was in the next box saying "I'll have it", so funny to watch
My mare is not normally an experimental eater, but like Supertrooper's horse she adores gingernuts. I offered her one biscuit to show my friend that she didn't eat anything like that, and she nearly took my hand off!