Oh wow, I've never read honour bondage before. Love it! And it seems exactly the kind of thing Erich would do to show his devotion to Biggles. (And vice versa, actually.)

*Biggles, with his wrists crossed behind his back, kneeling naked on the floor*
Algy: This is one of your weird things with von Stalhein, isn't it?
Biggles: Never you mind.
Algy: I only mention it because he's in the same state in the next room. *walks away, muttering* Idiots.

Seriously though, this is lovely, but I snorted at the idea of Biggles judo-chopping Erich's neighbour for holding him up and making Erich half freak out; not that I blame Erich, because with these two, a kidnapping or whatnot seems far more likely to happen than a chatty neighbour.