If you sprinkle....

When I was growing up, my mom had a little framed print in the bathroom like this:

As a nine year old, I remember thinking how genius that little poem was.  Today, I wonder why that wasn't posted in everyone's bathroom.  I really think it should be a requirement.  It's funny how basic common sense is becoming more and more required public postings.

I mean, c'mon, ladies.  How do you leave a bathroom (public and/or private) stall with a dirty toilet seat?  Do you not think about wiping it off?  If so, why not?  Aren't you embarrassed when people enter the stall after you and will see the mess you've left?  Why not just wipe it off with toilet paper before you leave the stall?  Please help me understand.