In my country it's not common, but not very unusual at the same time. I know several such cases where the husband cares about home and kids while the wife works and provide the salary for her family.

Improving my position in my new job and not dying from malaria. I'm doing well on the second part so far. 

it's a male name. It's short for Fredrick.

While both "error" and "mistake" refer to a wrong action, there is a difference between them in usage and connotation. A mistake in general is a choice or a misjudgment or a miscalculation that led to a "wrong" action. For example: " I made a mistake in the second question of the exam." or " Coming to this restaurant was a huge mistake; the food is disgusting" Error is more formal and generally refers to something that is "wrong" because it does not fit into the "right" or "normal" conditions. For example: "The computer is showing an error with that file"

Sarah, I apologize if you found that offending.. I was just trying to give  an example on the usual British humour. 

I enjoy sarcasm so much to the point that my friends try to be very careful joking around me so I won't hit 'em with my jokes))

I believe that the British sarcastic humor and their puns to be the best humor. Some believe that its not so funny, but I actually think that this kind of "hidden" humor is much funnier than the plain, direct one. 

And of course there's always the British making fun of the French and the Germans which never fails to crack me up. 
One of my favorites: