Okay, I have two things.
One, a mess of kobolds, two, a caged fire imp.
I've so far lost one gem and a roll of thread to them, but I've now got a wolf chained up and lying in wait for them. The problem is, they bump into the wolf, get bitten maybe once and then run off. I want to capture the little sods and make them see the errors of their ways.
My plan is to have a pit beneath my entrance divided into two sections. The first section is where the kobolds end up, and the second section is home to the imp, who obey his instincts and fireballs them for my amusement.
However I have two problems. The first is how to contain the imp safely and allow him to fireball things. I'm willing to risk a cage and a dwarf in the initial setting up, but will chaining him up still let him throw his balls of fire? Or will the dwarf set to chain him just run away and let him mill about on his own? Alternatively, can he shoot over fortifications?
My second problem, which I really need to solve before the first is a means of catching the little beggars. Cage traps are out, obviously, so my next stop was a grate and a pressure plate.
Could someone give me some hints as to how to use these properly? I set one up with a max and min of 5 (kobolds) and to activate for creatures and not my own. But I'm not sure where to position the pit in relation to the plate (It's just outside of a doorway), and the one kobold I did see dash over it didn't look like he triggered it.
Just to note, I'm willing to experiment with the imp and report back, what I really need help with is dropping kobolds into pits.