It's also a pity when I kill good neutral creatures (or companions) or neutral neutral creatures (or companions): O... well, like marsh dwellers and so on... I just like them.
But seriously, it's a pity when, due to some mistake (or accident), they die... for example, today, I was playing, and instead of shooting them with jellyfish (I don't remember who), I missed and just walked up to them, after which these (I don't remember who) attacked the jellyfish and killed two little ones!! :((... it was a pity, but reloading the autosave would have been a pain, especially since I had already loaded it before for another reason... (well, there was a plague, and so half of the fighters from the castle left... I didn't like that). Hehe.
P.S. Hmm... while writing the post, I was thinking about Heroes of Might and Magic III... I don't know why.