Auto Stunner location

Ok so I bought the auto stunner, and its a great auth, but I don't know what to train on.

I was told to train on the zombies under the wizards guild, but there are so many people down there, and I have been reported like 5 times so I need a new spot.

I was told you could do it at your house but I only have one construction, so I can't do that.

So I'm asking you, what should I stun? And where?

Thanks.

 

I'd recommend stunning on the caged Zamorak Monk in the Varrock castle. There can only be one person stunning him at a time, and most worlds are available. Just be sure to be wearing lots of armor for negative mage bonus.