Originally Posted by Ron Conte
a. separation: one person lives a full normal life, the other dies
b. no separation: both live, but their quality of life is greatly reduced; they suffer (not merely by pain) the loss of normal activity and participation in life. This bad consequence for two lives is very substantial.
Talking about a case where Siamese can live united and a surgery will definitely kill one of the brothers.
I think these cases are broader because one person may live but not necessarily will have a full normal life, the person living may have one of his body members amputated, internal organs reduced, etc. Also, in the case of both living but united together, their quality of life is reduced but will not necessarily be depressing. Parents are obligated to pass on the Faith to their children, to let them know that we all bear crosses and that there is a God, a Father who takes care of them, and provides for them. One never knows if there could be the first case of Siamese Twin Saints. Or, if in the future, with the advance of science, there could be a new procedure where they can be separated and potentially save both lives.