I agree with Alpha...I wouldn't think this is cause for concern really. she obviously took the precautions of smoking away from the kids and outside. As long as she isn't smoking around the kids or inside her home, I don't think it would be a huge issue. I guess it also depends on whether or not the parents know in case there is anyone with sensitivies etc. As long as she cleans herself up at home, I am not sure it is a big deal.