[Souji watches the sword fondly, and reaches out to remove his hands very gently as the machine spews out more bubbles. He doesn't seem to mind the fact that his clothes are now wet and clinging to his still alarmingly skinny body - at least the water and fumes are warm, right?]

It's not so easy, if you've never used it before. Look here- [He points at a rather conspicuous, glowing green button.] -this is the one that turns it off. Press it quickly to make it stop doing what it's doing- [He does so.] -and hold it in to make it turn off completely, see?

[Now the machine is well and truly off, and the torrent of foam has slowed down to a turgid trickle, Souji looks around himself and lets out an amused little sound.]

I really don't mind helping out, though, and I'm already wet anyway! Let's get this cleaned up before someone slips. I know where Haru keeps the mops and things.