What's normal?

"Once I lived with a heroin addict in a kitchen. Every morning he went out for the day to score, kissing me on the cheek, and I pulled the bedspread over the mattress opposite the cooker. I washed his used syringe in the sink, squirting out the blood left in the barrel, getting it nice and clean. It seemed ordinary at the time. It was. Somewhere out there, I understood, suburban housewives were dusting and polishing, making the beds, clearing the breakfast table, and I thought they were really weird." From an article on getting used to getting old.