"K, so" is a phrase I'm trying to erase from my vocabulary when I'm teaching. I find I use it a lot when trying to explain something. The thing is, it comes out sounding like "queso". You know, cheese.
I'll be lecturing along, explaining a concept and when I'm ready to move on, I just know I'm going to say, "K, so..." and I'm powerless to stop. I know that it comes out sounding like "queso", so then I think "cheese" and it completely derails my train of thought.
My students at first were confused when I'd say "K, so" and then start to giggle, but I finally let them in on my private joke and now just groan at me.
Hey, if I can't laugh at myself, I shouldn't be teaching :)