I've heard several stories of people who ate something, realized it was non-kosher, and therefore induced vomiting. Is this halachically required? Recommended? Does it accomplish anything? (If not, how should it be viewed?)
If I recall correctly there was a speaker from ... I think the OK; he said there's a story circulating that R' Moshe Feinstein vomited upon realizing he'd eaten non-chalav yisrael milk. The speaker then said that this story is 100% FALSE.