Can imagine the scene:

Hakuba: *shoves his way into the shower* "As the man of this household, I should get the first shower."
Kaito: "Hell no! Guests come first!"
*they shove at each other and--SLIP!*
CLONK!
Kaito: "...ite..."
Hakuba: "...I'm not going to ask what that is."
Kaito: "Bar of soap?"

*headdesks* Bed time for teh Jeva!