Let's be clear on this. I am NOT trying to put people into little boxes. I'm trying to get them OUT of the boxes. The people I'm talking directly to are the ones who put themselves in the 'straight' box. Except their box is the 'straight except when' box. There is no EXCEPT, you're either straight or you're not. If you want to talk about fluidity that's fine, but 'straight' is very specific and very limiting.
Call yourself whatever you want, just know this; when you say you are totally straight, are not attracted to men at all, UNLESS some condition is being met, then you just look silly. Why not call yourself what you are, sexually adventurous, or fluid, or bi, or whatever. There is no such thing as 'straight except'. Why is this even an argument?