DB4

4.1 Danger Suit in Dummy

4.2 Is that Suit Setting Up?

4.3 Don't Help

4.4 Make It Hard for Declarer

4.5 Take a Risk

4.6 Be Ultra Passive

4.7 How Many Tricks Does Declarer Have Coming?

4.8 Is Partner Seeing it Too?

4.9 See the Tricks Coming

4.10 Declarer is Not Crazy