We have two pre-schoolers attending nursery. My partner and I agree on everything regarding discipline and 'bringing up our children' although he regularly uses slang to the children/infront of the children. He doesn't even realise he is doing it and wants to change so that we give the children an equal opportunity when they start school - they already copy these words/phrases etc. I feel awful about worrying over something like this - and have tried to put it to one side - although it is a daily issue and one that I feel very strongly about.