On Checklists and Complacency: a mea culpa
It’s easier to see faults in other people (and benefits, too). You could say that this is part of the problem addressed in Matt 7:5. The challenge is to get past thinking the other person’s faults make him a bad person, and instead use the experience to look at our own lives, and find where we also have a mote (or a plank) obscuring our vision.
In a way, this happened to me last week.