One glass of wine wont effect you as much as one bowl.

As for harm, if you cook something and forget its cooking and set the house on fire, the risk of getting hurt is now introduced.

I never said you were a bad parent. hell, i give you the most credit in the world because raising a kid is extremely difficult and scary this day and age. I just thought that somebody as smart as yourself would see that smoking, even if the baby is asleep, is not the right thing to do at this time.