DD (20 months) often comes home from the childminders smelling of cigarette smoke. We've questioned this and cm has confirmed that some members of her family do smoke but never in the house or while the kids are there. Can this be true? Even if it is, I'm alarmed that enough residue is getting on DD's hair and clothes that they smell. How dangerous is third hand smoke and would you pull your child out of this setting? Really worried she's being exposed to harmful chemicals that could have long term health implications. Or am I over reacting?