I know Jack. There were times I've probably been Jack. This brings to mind the following paragraph from the 10th step essay in the 12&12.
"Finally, we begin to see that all people, including ourselves, are to some extent emotionally ill as well as frequently wrong, and then we approach true tolerance and see what real love for our fellows actually means. It will become more and more evident as we go forward that it is pointless to become angry, or to get hurt by people who, like us, are suffering from the pains of growing up."