Actually, in my 14 years as a dub, it only came up with one person in our cong. who got pregnant out of wedlock (and used drugs during pregnancy). She was DF'd but still came to most meetings. Of course, we all did the 'avert your eyes when she walks by' thing. But other than her, I never actually had to shun someone publicly.
My supervisor at work has been witness to my being shunned, since I DA'd. She has asked me a couple of times if I ever had to do that when I was an active JW. Then she asked if Iwould have done that if I was in that position. I'm embarrassed to say, yeah, probably being a good JW, I would've. But I would've first tried to avoid having that person see me at all so I didn't get put in that situation.
Did you ever shun someone as a dub, and how did you / do you feel about it?