Here is what I said in the original post:
Now, again, the main job is to keep the park clean, but many guests are first timers and need help finding their way around so if we see someone looking at a map like they are lost, we go up to them and help them (that is, if we aren't in the middle of doing something much more important). Also, because we wear all white, we are highly visible and are always moving around... guests come to us a lot for help, so we need to know a lot about the park or where to send them if we don't know exactly how to answer their question.
I'm not trying to come off as over bearing here, but the point is, criticizing custodial for doing water Mickey's isn't worth the time. It honestly takes away from nothing. Sometimes it may be as simple as they overstaffed Main Street or whatever for that time of the day and they just need to give someone something to do instead of just sitting around.
Overstaffing/understaffing is a much bigger problem at WDW than water art.