Upon entering the Nether I have allied with the Pigmen to fight the never-ending hordes of ghasts. I have built an iron and obsidian fortress that they reside in along with me. We are like brothers. However, when shooting at a Ghasts one of the pigmen got in my line of fire and got hit, and the near 30 pigmen surrounding my base ganged up on me, and pushed me off a cliff into a pit of lava. How do I get the Pigmens trust once more?