Look carefully at the answers in this sub-forum, Diggity, and you'll see that one of our mods, FakeBoobsRule, has answered this question a lot. Substitution is your best hope. It's highly unlikely that second-hand smoke from your husband will affect your test in any way, but if you're slight and have been a heavy, steady user, you'll have trouble passing that test with your own sample. Hydrating yourself with water and tea drinking won't really make a difference, although a lot of people enjoy telling others that it will. I have no idea what vitamin B+ is, but the various types of actual B vitamins aren't going to make a difference, either. Again, read the other answers here very carefully.