Bakura is.... still recovering a bit from a nasty echo that triggered a fugue state and has been keeping more to himself lately and has been pretty low energy for him since then. The water-echoing liikely isn't going to help with that much and he may need to reachout to a few people to stabilize.

Siegfried has been spending most of his time dancing since he got that echo back, as well as being.. well.. a reckless idiot in many respects. Windows are a bigger danger than before! The water laugh will likely be the first laugh anyone's heard from him! And it'll just confuse him that he's doing it... :)