HRE saw that Spulla was planning to do something because they did not end their turn. 
A rational player would never end his turn because it just gives everyone else more information. Another bonus is that people tend to get bored by the game. This makes them play weaker as the game goes on.
A rational player would never end his turn because it just gives everyone else more information. Another bonus is that people tend to get bored by the game. This makes them play weaker as the game goes on.