37-points-rule
In tournaments, transgression - stepping over the Mölkkaari forward - usually is scored as a miss. When it comes to the end of the game, this rule could be used as an advantage.
Example: the Team needs 5 points, but accidentally threw a higher number. The team would now fall back to 25 points, so it would be obvious if the thrower intentionally stepped over - so the throw would not be counted at all.
To prevent this behaviour, the so-called 37-point rule is often used. This means that from a level of 37 points each transgression leads immediately to a downgrade to 25 points.