After being with someone long enough you eventually graduate from comfort school and begin to fart at will in their presence with no qualms.(This is the time period where it is amusing to both parties: see Dr. Stinkenstein emeritus)
Pam: Baby it stinks a little in here. Did you fart.
Paulie: Of course, they call me Mr.Stinkenstein at work . You can call me Dr. Stinkenstein.