I used to take a picture of certain celebrities to the chemical dependency units so they could see what they looked like Before & After. It was a real eye opener for many of them.

In some things we attempt, we feel fully confident we can succeed -only to fall flat on our faces. So it would only make sense that there would be things things for which we have little or no confidence (or perhaps filled with fear) in attempting -which we can quite easily succeed in (after one, or only a few attempts).