If someone is reeking of cigarette smoke and comes into my home which is my place of business, yes I will definitely tell them they must change their smoking routine before they enter my home. There are some outside odours we can't control, and the smell of bm's is part of our bodies natural function. If what a parent does on their own time comprimises the quality of the air I breath in my home, then yes, I'll call you up on it.