What right has this drunken fool to interrupt everyones' enjoyment to deal with his infantile behavior? I would suggest that it might be inhumane to coddle these fools. Now, as to the comment about violence, possibly vigilante action with a sidearm, I would disapprove: you might hit an innocent horse. Again, looking for serious. no-maintainence options in a very rural setting. The anthill and rodent options require too much work. One suggestion at the festival, which had a number of flies and mosquitos, was tying him to the horse backwards, coat him with honey, and send him on his merry way.