Well,
First off, RVers are always learning stuff. I'm pretty sure that none of us are born knowing EVERYTHING there is to know about RVing. We learn on RV.net, IRV2 and a whole host of other forums. Now, if you're not computer literate, then, real life application always seems to work too. We learn by doing, watching, seeing, smelling and more.
Most of the time, especially here on the net, questions are asked, issues are displayed and, an entourage of opinions and answers are sent back.
But, what I'm getting at here is, IS THIS THE FIRST TIME THIS PERSON HAS DUMPED THIS WAY? Was he born that morning? Being that he was in an "RV", has he not seen or, been around other RVers that have used HOSES while dumping? Has he NEVER been in an RV Parts/supplies store and seen "Dump hoses" and all the related attachments?
Unless this person's been in a cave for his entire life and, lived in that RV IN THAT CAVE, until that very minute that the OP watched his inappropriate behavior, he has had to have seen, witnessed, been shown, learned at RV parts stores, POSSIBLY BEEN ALREADY TOLD how to dump, AND WITH THE USE OF THE PROPER EQUIPMENT!!
Again, while we all consistently learn about our coaches, their operations, their idiosyncrasies, what's RIGHT and what's WRONG, in terms of procedures etc. and, by the way, I'm also pre-supposing that about 99.99999999999% of us can READ, and therefore SEE in books how things are done, i.e. OWNERS MANUALS AND INSTRUCTION PAMPHLETS, that this person, at least ONCE in his life, has seen or read the procedures for dumping and the, the use of proper equipment.
I don't really believe that this person was not educated enough to know he was seriously in the wrong. Not in todays world. When one of you made comment about him being a pig, I believe that was the true analysis of his actions, PERIOD! That's not the first time he's done that way.
Scott