That's really interesting about your girlfriend, all those "don't fight in front of the kids' trains of thought should probably considered as successfull as 'staying together for the kids'.

DP and I bicker a fair bit - we're chalk and cheese. It's hard to pretend your not sh***y when the children are around. They're not stupid, and know your dying for them to get to sleep so you can have your say!
We decided that it was important that the children see us resolving the problem between us and making up too. It makes us very conscious of fair fighting as well.

Now DS is on the move we found every word we said was no!, don't !(put toast in the video, chew ext cord etc etc).