By all means tell him but when it comes down to it, actions speak louder than words.
When he is using, he will not comprehend what you are telling him at that time. In order for my AD to actually feel and know the consequences of her actions AGAINST my wishes or boundaries, I had to take the action necessary. It was only then that she realized there were definite consequences. It's never easy but talk doesn't seem to work with addicts.
You and your kids cannot be expected to leave your home just because he feels the need to "use" in it. HE needs to leave and until he can conduct himself in a responsible, adult, and safe way, he can find another place to use. His behavior is not something that can be tolerated around children at all.
Stay strong - you and your family deserve that and deserve to feel safe and secure in your own home.
