I’ve heard congregations sing badly enough to cause this sort of thing . . . call it an occupational hazard for pastors! (Not entirely SFW sometimes.)
Peter
A reverent hymn (NOT!)
The idle musings of a former military man, former computer geek, medically retired pastor and now full-time writer. Contents guaranteed to offend the politically correct and anal-retentive from time to time. My approach to life is that it should be taken with a large helping of laughter, and sufficient firepower to keep it tamed!
There's a word for those subtitles: Mondegreens.
See http://en.wikipedia.org/wiki/Mondegreen