To follow up on my post:

The original post talks about noticing flinches and attachments, which is similar to what I discussed above. However, I would expect it to be a lot more difficult to notice the flinch itself than it would be to notice the aftereffects, because the flinch is one moment, and the aftereffects last. (At least, when I catch myself doing it, the flinch is a single moment, and then the rationalization normalizes very quickly unless I act to counter it.)

The momentary nature of the flinch would not only make it harder to notice, but also more difficult to teach people to notice flinches.

There may well be a better approach to this than the one I suggested, but I have to think that exercises/activities that focus on the aftereffects would work better than ones that depend on catching that flinch.