I think low scoring games like baseball where a game can be decided with one score and one ump has the decision of safe or out at home plate in the bottom of the 12th tied at 0-0 :shrug:
I have seen many a Profesional Wrestling match influenced by a referee out of position. Especialy in tag team matches. I don't think it is anything crooked just too much mayhem for one man to keep up with. They should consider putting another man in the ring or at least at ringside. There is too much action and momentum to use instant replay. It's a tough one.