[KagomeShuko] No, no, and thrice no. But those are the closest guesses yet.
[Bismarck, glass] No.
[Tuj, metal] No.
[Raak, cavity] No.
[Dujon, Xmas] I don't know whether he likes them, but they are a necessary component of his professional work. Let's class that as a YES.
[Boolbar] No.