Weed is not as dangerous as alot of other things out there. If you don't smoke then he shouldnt smoke around you, he could go outside or in a ventilated room. You can smoke marijuana and still be a parent. I know dozens of parents who smoke but I grew up in southern california, not in a 1930's prohibitionist community.
One thumbs downer typical, oh well most people are educated enough to know tobacco and alcohol have far more side effects and don't even get me started on pills. If pot is so bad why do many doctors prescribe it as medicine? Do your research Nay-sayers, because you all look stupid. What do you have against consenting adults making their own choices without the government getting involved? Tell me!