Norm: that isn't a bad idea... too predictable,eh? Goblin army!
The battle is going easier than i expected. Actually considered having the goblins fire arrows at oskarr from cover which would have increased the difficulty of the encounter somewhat. Then again, if all three goblins scored hits on oskarr, it'd be a very different battle.
I figure they attacked because they thought oskarr was the only one who was heavily armed, hoped to take him out quickly and deal with the other two characters they were aware of.
Dane, pavel, and theren (and skovl, if he's roused from his current state of distraction) are all 25 feet away at this point by my reckoning so all three can move in and attack.
I think the odds of friendly fire depend on the situation, and your character kind of has to use their best judgement. Right now, oskarr and the goblins are pretty close to each other, so if you miss, there is definitely a solid chance of you hitting him.