[Corianis]

I sometimes do this, but only with permission. Usually I only do it if they also want to do the same.
One thing which I usually do (got what a horrible phrase, any synonym suggestions?) is alter the way my army is organised. For example; the army I currently play is a marine force which uses Cleanse and Purify, but I feel that I do not need to ask permission if I want to spread the special weapons around a bit by taking one from a squad with two (eg 10 man tactical squad with 2 plasma guns) and putting it in a squad with only 1 heavy weapon (eg that 5 man tactical squad with a missile launcher now has a 6th man with a plasma gun).

EDIT: Thanks Novelizer, I was having a middle-aged moment (I am not middle aged but most of us get the reference, I hope).