I am bilingual and in progress of learning spanish (I already know french and english (french being my first language). Not long ago, I had a dream in which a DC was trying to get me confused by speaking spanish (some high schooler's stupid joke) which got him more comfused. I even was able to translate what he said.

Getting closer to the point, I was thinking about a conversation I could have with a DC. I started in english and then by accident finished in french and then it strocked me. Could my DCs understand me in all the languages I know? Could I start talking in english to one and then if I started talking in french he would get really comfused? Would he ignore the change and even reply me in the new language I have surprised him with? The dream about the guy getting comfused while trying to talk spanish isn't a proof they can't speak languages we have learned since I'm still limited in spanish and would of gotten comfused myself. Anyways, if you have spare time (and you're bilingual) try seeing for yourself. As my signature says I haven't gotten a LD yet so I can't try myself. Maybe another time.

Put your opinions and experiences!