As an Episcopalian, we technically have the rite of Confession and Reconciliation as one of the things we are supposed to do, but I've never seen it done in actual practice.
In contrast, I know that most Roman Catholics do regularly incorporate the practice, and it seems like a wonderful thing—tangibly hearing the sacramental words of absolution from a man who is understood to speaking in God's stead. As one who deals with abstract things all day long, it would be nice to hear "God with flesh" sometimes.
The question is, would a Roman Catholic priest technically be able to hear the confession of a non-Catholic? I mean, since I'm not a Papist (I don't mean that pejoratively, I promise!), technically I'm a heretic. As such, could a Roman Catholic priest hear my confession even if he wanted to? More importantly, can he pronounce absolution?