You know the all in one bathroom?

@IreneSwift - Really?! I didn't know there were sound effects associated with this item. I just directed them to it when they needed to use it and quickly moved on to something else. Since there are no visuals/animations involved with it, there was no need for me to stick around.

In that case, maybe the sink portion of the All-in-One operates like the hand sanitizing feature of the 'Uber Sani-Sim Toilet', only instead of a mist it may channel clean tank water for the purpose of hand washing. Yep, that's the best my imagination/to reality can come up with :) .