In high school I had a speech class where we had to match up with another class member and learn about him or her. I was paired with a girl who lived down the street from me, and for some reason I went into missionary mode and in the course of our discussion I invited her to church. She (rather brilliantly in retrospect), said she would be happy to go to church with me, if I would in turn go to church with her. And I froze. I had never set foot in a non-LDS church in my young life, and the prospect of doing so freaked me out, so I declined and backed out of the whole thing. (Adult me wishes teenage me just went ahead and did it.)
It would not be until my mission that I would explore other churches somewhat. Two experiences that stand out are attending Rosh Hashanah services at a Reform/Conservative synagogue, and also attending an evangelical service at what we called the Church of the Neon Cross (because there was no name on the building, but just a large, green neon cross). This last one was close to where we lived in Pueblo, Colorado, and we walked by it every day, so one time while services were in progress we decided to check it out. There was a band up front, which was new to a young Mormon. We were wearing our suits and name tags, so the pastor asked a couple of ex-Mormons to speak and basically bear their anti-testimonies, which was fine, I didn’t mind in the least.
When I married, my wife’s family was Lutheran, so on many occasions I have attended the Lutheran Church in DeKalb, Illinois. To experience a high church, liturgical service was fascinating to one with such a low church Mormon background.
I occasionally go to other church services these days for various reasons, and I am no longer freaked out by the prospect as I was when I was a boy. To the contrary, I almost always enjoy the experience.
So what have your experiences been visiting other churches?