This is a piggy-back to the penances thread.
I have two strange places, but both with the same priest. I used to know a young, spry priest who was obsessed with this sacrament. He once attended a Theology on Tap (a Catholic talk that take place at a bar.). When the talk ended, he and another young priest were sitting next to me and I heard them conferring, "yeah, I think we can do it here." Then he stands up and announces, "anyone who wants confession, I''ll be at the end of the bar, Fr. so-and-so will be in this booth. So, I went to confession while sitting at the end of the bar. No one could hear - it was a loud bar. And we were in a corner.
Sometime later, I went to an all-night prayer vigil outside an abortion place. I'm not prone to scrupulosity, but all of a sudden I started getting all these thoughts of "you're just a sinner too. who are you to be witnessing to anyone else about morality?" This was a Saturday night near a college campus. So the kids going and coming to their parties were asking us why we were there. Well, this same priest comes along, and prays with us a while. He looked as though he was about to leave and says, "if anyone wants confession, I'll be at the far end of the building. So I received Confession standing on the sidewalk outside an abortion place in the middle of the night. Once again, no one could hear. It felt as if God sent that priest there that night just to settle my heart.