OK, these are not official baseball rules, but I remember one league my son played in -- I think it was Babe Ruth -- that had a rule whereby in extra-innings you start with a man on first (the 6th way)! Then, if no runs are scored, you start with a man on 2nd, then 3rd.
Pretty screwy. Not as nuts as the rule we ran into in Canada, where the inning automatically ended after 5 runs scored.