It's true.

It must have been a very rich elephant as I expect he needed a lot of heroin to get high. I wonder what a desperate drug addict elephant does to buy his fix?

The real danger is when he gets the munchies

Presumably he's sold off his own ivory, having carved it out of his head in the filthy toilet of some pub. But after that? What then?

Did he try to get the ivory from his friends and family?

"Come on giz a lend of it mate, you ain't using it. I'll bring it back I promise"
"No Nelly! And you can put that stereo down right now."

I imagine he eventually had to turn to crime. That's probably how he got caught, they aren't careful when they're breaking and entering, we've all heard about them leaving their footprints in the butter.