I read in a confessors manual that when confessing extremely shameful and embarrassing sins, the confession is perfectly valid if the penitent writes these types of sins on a piece of paper and lets the priest read it. The penitent then must say "I accuse myself" of this or these sins.
Yesterday I made general confession of the sins of my entire life. I began with the above practice. Some sins of mine were so shameful that I would have had a very hard time verbalizing them and the last thing I wanted to do was commit a sacrilege. However since I had four full pages of sins to confess, the priest rather hastily grabbed hold of the papers and said that since he was a speed reader it would be better if he just read all my sins and that if anything needed clarification he would ask questions. The only thing that registered on my brain at that moment was a confession in which the priest asks questions and the penitent gives honest answers. It did not occur to me until afterwards that this particular confession was most likely invalid. From my understanding, the only time this practice is allowed if if the person is mute and I'm not mute. I have no speech impediments at all.
I have to confess that I have suffered from terrible bouts of scrupulosity (I didn't decide this on my own, three priests have told me this) as well as OCD. All but a few of these sins have already been confessed and absolved. My sole reason for even making this general confession was to correct any errors regarding material integrity that might have occurred with previous confessions so that I could enjoy compete peace of mind knowing that I had confessed everything to the best of my ability.
I'm wondering now if I should find another priest and do the whole confession over or just confess those sins that I'm certain were never confessed before. I wonder too that since technically it is permissible to let a priest read your shameful sins if that part of the confession is valid.
Here is a link to the Confessors manual which was published in 1905. There is no question that it is perfectly legitimate to write shameful sins on paper and let the priest read it.
http://www.ebooksread.com/authors-eng/caspar-erich-schieler/theory-and-practice-of-the-confessional--a-guide-in-the-administration-of-the-s-hci/1-theory-and-practice-of-the-confessional--a-guide-in-the-administration-of-the-s-hci.shtml