Oh, boy.
Joker’s nerves being shot so he’d basically impervious to pain but also doesn’t really feel much else either.
Harley being a terrible cook but trying anyhow. Spaghetti and jelly beans, anyone?
The two of them letting Bud and Lou sleep in the bed. At first Joker was staunchly opposed to the idea but Harley wouldn’t shut up about it.
Both of them delighting in decorating their hideouts with toys and torture devices.
Joker’s body being covered in chemical burns from his constant tinkering with explosives.
Harley stitching him up after each tango with the Bat. To a point where it’s essentially a ritual.
Most of his teeth being false since he’s been punched in the face so damn many times. What poor Gotham dentist got suckered into seeing the Joker? I want that story. I bet he took the nitrous oxide with him when he left.
Harley lovingly tending to a plant that Ivy gave her only to have Joker ‘accidentally’ kill it. The next day a larger, prettier plant has replaced it.
Going dancing at The Iceberg Lounge. Ordering everything on the menu and then bailing just to piss off Ozzy.
Harley being able to call up any of the rogues and get a favor because they like her. Joker being able to call up any of the rogues and get a favor because they prefer breathing.