Ok. So I was obviously being unrealitstic. I honestly thought the builders would somehow 'zone' off the building works so that the dust stayed contained in the area they wee working.
We are having a wall down between small kitchen and dining room and have temporarilty decamped to the old dining room as obviously had to take all of the kitchen units down. So all our plates, bowls, cutlery, food etc is all out in the dining room.
Come home from work and it's all covered in about 3mm of brick dust. I could cry.
Still not finished - wall is coming down tomorrow so seems a little pointeless to even attempt to clean.
But am I being unreasonable/unrealistic? Could they not have attetmpted to cover up my things before starting?!