Amongst the weirdest things I have ever heard must be the choir my (now) wife sang in many years ago. Occasionally they'd venture into Spirituals and Stephen Foster songs. The lyric had always to taken exactly-as-written. So there'd be this whole massed choir of about 100 well-brought-up young (Scottish) women ... singing "Ohh dee Camptown ladeeez sing disss song...." All the "de"'s and "dis"'s being faithfully rendered in a very
c l e a r l y --- e n u n c i a t e d way..

My wife could never understand why I used to fall about...

Cheers

Steven