vegan and vegetarian isn't the same thing.
Vegetarian diets usually mean the person eats mostly vegetables, but also may eat eggs from time to time, white meat like fish and chicken.... it's a diet.
vegan is a way of life. they do not eat meat, and don't get close to anything resembling meat. vegans have a closer relationship with their food b/c of their selectiveness with the preperation, and presentation.. if a vegan dish is served on a plate and somebody throws a piece of meat on it, it's no longer a vegan dish.... it's ridiculous in my opinion..... they require their food to be prepared in a seperate counter, a practice i believe is derived from Kosher diets, where food is seperated depending on where they're from... since it's such a way of life thing for vegans, such a personal thing, i don't think they should smoke weed fertilized with fish or bone...
but how can you know?? another problem with this prohibition is that clients have little control or choice when it comes to what weed they'll buy......