This is an excellent episode that shows Kirby's character.
The episode starts with Kirby on a 24 hour pass acting like a typical Soldier; drinking hard and playing harder.
He returns to the Squad with a killer hangover but continues to do his job, flanking a German Position using his BAR like usual. When they take a break he puts the arm on Doc for some more asprin.
The real story starts when he takes on a partner to finance him in a poker game where he cleans everyone out including a new guy who gives him $800 in markers.
I'm not going to ruin the story but suffice to say that Kirby is as good a guy as he is a Soldier.
"If you tell anyone I'll bust you in the mouth." speaks volumes.
One of the great ones that lets us see who the guys in the Squad really are.