I also try to teach them Occlumency, but Severus is helping me, he is still more experienced and a teacher. It is fun to work together, helping them build their walls and find the best strategy for their minds. After the first night Severus won’t help Draco anymore, I guess he found some memories with me in it he doesn’t want to see, he also refuses to help Theo, but I haven’t found out why. It does make me curious. While Draco uses Malfoy Manor to organise his mind, Theo uses a bookshelf.