T
he value of corporate confession comes simply from the   fact that we are doing it with people—those we've been glad to share   ministry with, and those we find more difficult to appreciate. A person   in the next pew may have slighted us; we may have just learned that a   person across the aisle was insulted by something we said. Corporate   confession is a time to air it all out and reflect on our regrettable   tendency to harm one another. It is a great equalizer, reminding us that   we are all guilty of sinful actions and omissions, and that we all need   forgiveness.  In his classic rule for monastic living, Benedict recommends that the community recite the Lord's Prayer together several times a day to help uproot the thorns of contention that spring up in community life. I believe that corporate confession on Sunday mornings can work in much the same way.
Of course, anyone can sleep walk through confession. You may begin to pray with good intentions, and may even be painfully conscious of having done something regrettable, when suddenly you are preoccupied with whether or not you took out the dinner rolls to thaw.