Not the smartest place to put a Cannon

So I'm walking up the way to Ironforge and I see this cannon on the side of the path:

And I think "wow, cool." Let's move in close and see what it's pointed at.


.. but I couldn't see anything (that's the view from the back of it). Oh well. I thought maybe it had been placed in the spot specifically aimed at something, but apparently not. And then it struck me.... what if an invading enemy came in and took over that gun?

They're working their way in,... take out the guards... and then commandeer the cannon. So swing that baby around and aim it the other way... what would it point at...? Well - here's the 180 degree angle:

Right smack at the gates of Ironforge. Doh!