House pride post-Hogwarts

[Kirstini]

No: HPFGUIDX 65183

David wrote:   IMO, the adult 
 characters who show strong house allegiance are those who have not 
 experienced much of life away from the school.
 >snip<
 Sirius: spent most of his time in Azkaban 
 >snip<
Otherwise, there seems to be remarkably little reference to house 
allegiance in the adult world.  Only the Malfoys and Weasleys give 
any evidence, and what there is comes from the children.  

Kirstini (me):
Does Sirius ever show strong house allegiance? This would really 
help my argument...