So there are apparently four things that are taboo topics of conversation... I believe they are money, politics, religion and sex.
But i'm gonna talk (or rather, show you a clever diagram) about one, cos it's such a funny topic - us women, we are definitely from somewhere else... Venus or where-have-you...
Below I found an analogy of the way we think, what we think, and how we think... strange but resonates so true.

