I don't think I am a very critical person, but I've noticed more and more and more how moany and negative and what a joy-killer H is, and noticing it in him made me notice it in myself - and the kids, who have clearly learned it from us. I play a game with them now, and we start the day fresh and the first person to moan, whine, blame, criticise or otherwise bring down the tone loses. We make a laugh out of it. It's often me who loses first, so I am learning to STFU with my Sad-Sack behaviour too. We have a much happier house these days, though the contrast when H comes round to moan about his job and his life and his colleagues etc etc means (and this is a bit of a shame) it's often a sigh of relief when he goes.