oh yuck! if you're getting them after they fall from the tree, you better be sitting there watching to see which ones fall when, because the ground under an apple tree is covered with apples, most of which are rotten and contain bees or other insects, and it's hard to tell the difference unless they are really bad (which many of them are)
i didn't know there was such a type of vegan, but i think if that's the case they probably end up eating a lot of meat, in the form of bugs
LOL! Also Hindus in India get their B12 from the remains of dead insects,their lavea and feaces from eating unwashed fruit and vegies.