I was mass deleting newsfeeds after the collected bulk from the 3 weeks holidays and a couple of Simply Geeky posts got my attention (that's impressive when you consider that I ignored over a thousand posts)

One of the posts said:-

Concidentally last weekend my friend and I met a new guy and his parents and my friend very politely and in good spirit (almost as a compliment) asked "how old are your parents?". This guy thought it was very offensive and didn't reply. It was quite strange for me too as I didn't think that would really be a taboo subject.

So are the top 3 things that you wouldn't talk about with strangers?

I think mine would be Religion, Relationships and Money. Couldn't put politics in the list cause the topic doesn't interest me in the very least.

Actually when I was thinking of the list of taboo topics I wasn't that easy to find taboo topics.