Well, most of the time they already dead from the lightening and mass attacks from the Viking Kitties when I get there. I always launch a nuclear weapon to make sure they won't be coming back. The reason for this is, even RATs can survive the most vicious attacks and live to post another day. With the nuclear option we can greatly reduce the chances of that, and it is very nice to see on your computer monitor, that pic is the next best thing to actually being there. I'm half drunk.
I'm working on a brewski or two myself :-)
And I concur that ensuring a troll is defunct is always a good tactical move.
They ain't gonna come back if they get vaporized!
:-)