Some competitive bidding

Here's an interesting hand. I think North was a little too encouraging. I sat West and I was surprised to see my opponents bid slam when I held half the deck's points.

North	East	South	West
2	Pass	2	Dbl
3	Pass	4	4NT
Pass	Pass	5	5
Pass	Pass	6	Dbl
Pass	Pass	Pass

North

 6

 8 4 3

 J 10 7 5 4 3

 Q 9 3

West

 A K Q 8 5

 Q J 2

 6

 A K J 6

East

 10 9 7 4 2

 9 7

 K Q 9 8

 10 8

South

 J 3

 A K 10 6 5

 A 2

 7 5 4 2