Id be more worried about the wormer honestly, Ive walked around barefoot and I eat raw veg all the time and Ive never needed a worming so whats up with that? But I did work for a ranch that had a few hundred sheep and goats and while I was working there they started giving them liquid wormer, well the animals started getting diaria real bad so there answer was to give them more wormer which I objected to and of course they didnt listen cause they thought they knew better. Consequently animals started dieing (from dehydration I would guess) by the dozen, at that time I quit, the fact that they refused to listen to me was very irritating and with all the dead animals was kinda a nightmare around there anyway. People will say wormer is perfectly safe but think about this, there are many beneficial organisms within our bodys many of which like bacteria we just couldnt live without and anything thats gonna kill a worm in ya is probly gonna kill that little thing in you that digests your veg for ya...which you need to stay alive. Anyways I dont think a bit of poop is gonna hurt anything.