There is nowhere in Haad Rin where it is ok to smoke weed.

OP, it is not like they were drunk, fighting, swearing and pissing on the wall of the restaurant. Get some perspective on life.

I think second hand smoke in a crowded room for non smokers who work there 6 days a week eventually is bad for them. However catching a whisp of smoke every now and then is hardly the road to lung cancer. Sucking in diesel smoke on a roadside cafe is regarded as OK. The lttle girl would probably have more damage done spending some time in CM during the big smoke.

As is sometimes quoted prior to punching out the offending party - I respect your right to smoke, perhaps you would respect my right to breathe clean air, especially whilst eating. As far as blowing a J whilst in a restaurant and letting your child a, witness it and b, breathe it is more than irresponsible.