serious question. If a little kid (or drunk adult) vomits or urinates in one of these. How will the service staff know? I mean they aren't going to check them before each guest, that would take way too long. Can you imagine walking into one of these, and realizing there are fluids on the floor with no where to go? It's not like the monorail where you can "avoid" the area. You are basically stuck until your next stop.