Deal 20	♠   ♥   ♦   ♣		WEST   NORTH   EAST   SOUTH 1♦ 2♣  BID      The bidding has been as shown. It is your bid. What do you say?
	♠ 9 6 3 ♥ 10 5 2 ♦ A 2 ♣ K Q 10 8 6

 

Deal 20	♠   ♥   ♦   ♣		WEST   NORTH   EAST   SOUTH 1♦ 2♣ pass pass double pass  BID    The bidding has been as shown. It is your bid. What do you say? First let's agree on what you DON'T say. You don't say "double" because that would a Negative Double showing at least one 4-card Major. You don't support partner's ♦s with just two of them. You probably don't bid 1NT with no honor in either Major. So you pass. This is called a "Trap Pass". Partner re-opens with a double. What do you say?
	♠ 9 6 3 ♥ 10 5 2 ♦ A 2 ♣ K Q 10 8 6

 

Deal 20	♠ A K 7 5 ♥ A 9 8 3 ♦ K 8 6 ♣ 9 5		WEST   NORTH   EAST   SOUTH 1♦ 2♣ pass pass double pass pass pass The bidding has been as shown. It is your bid. What do you say? First let's agree on what you DON'T say. You don't say "double" because that would a Negative Double showing at least one 4-card Major. You don't support partner's ♦s with just two of them. You probably don't bid 1NT with no honor in either Major. So you pass. This is called a "Trap Pass". Partner re-opens with a double. What do you say? Now you see why it's called a "Trap Pass". When an overcall is followed by two passes Opener should try to find another bid. In particular he should try to double for takeout if he can. That's what North did here, but you converted it to a Penalty Double by passing.  Summary
	♠ 9 6 3 ♥ 10 5 2 ♦ A 2 ♣ K Q 10 8 6