When I see parents in the park ignoring or being snippy with their kids, I feel rage; it seems they don’t know how lucky they are. It feels almost like PTSD, and I don’t know how to get past it, especially as we are now, once again, hoping for another miracle. —UnfairDear Unfair,When you find yourself assuming people you don’t know had easy roads to parenthood and take their own children for granted, meet that fantasy with the following response: “I don’t know this person. I don’t know what her life is like or anything about her relationship to her children outside of this five-minute window today. If you two don’t talk about the fact that he has a wife and child, there’s not much there to preserve.