i suppose spit is technicially not vegan, since it is indeed an animal product. although if that means i can't kiss my girlfriend, we're in trouble.
i'll limit myself to "practical veganism" (i.e. avoiding animal exploitation, boycotting inefficient, environmentally harmful farming industries)... although that's not to say i want to eat a spitty muffin! yes, with the penny tip comes exile from the lame-people bakery.
by the way, i like how this thread has become a discussion of veganism AND technical metal: a winning combination.