I had this thought and realize beams can hit friend or foe. This thought came to mind with +4 and +5 fnp in a deamon army. I know the first model hit hs to be an enemy target. However I was thinking of having a beam hit my own models so I can force toughness test on my models to try for +1 FnP. It would be awesome to have a +2 invulnerable saving model that can re roll and have +3 feel no pain. It's rather easy to do with flying circus, especially if one of your MC's are grounded.