I've "seen" many Talmidei Chachamim not saying the Ribbono shel Olams following each bracha of Birkas Kohanim. At least, I hear them chanting with the Kohanim from start to finish. Are these tefilos ...
By Birchas Kohanim there is a Tefila for people who had bad dreams. What does a Kohen do when he has a bad dream as he can not say the Tefila during Birchas Kohanim?