What would happen if one conjoined twin conspired to murder someone and the other twin was innocent. How would the court room punish the conjoined twin when they're joined by the torso. If you send one of them to jail and the other one would also go to jail because they can't be separated. I think they would need to make a special punishment for the other twin.
Sometimes it is better not to think about it. I was looking at silly t-shirts the other day, If I wear silly t-shirts I could put a smile on my face when I see my reflection and I could see someone smile at my shirt and that would make me smile again. Everyone needs to cheer up sometimes. Some problems can't be solved, like growing old and eventually passing away. You just need to stop thinking about them.