I usually would say something like "We just can't stand to listen to her cry for that long" and "I think it's pretty normal for them not to be sleeping through the night at this age, lots of babies don't sleep through the night at this age". We did train her to fall asleep drowsy and not nurse overnight at the age of 14 months. 2 or 3 really awful days (not hours of crying but more like 10-15 minutes and even that was really hard to listen to) and then it was done and now she can be put down drowsy, usually sleeps through, and when she wakes up usually will settle without nursing. I think she just needed a push. I wonder if that is when CIO works for people--when it's done when the kid is pretty much ready to make the change anyway and is just stuck in a rut of a previous habit.