Read the whole thread and I'm really curious as to what are acceptable 'adult' interests?
Taxes, mowing the lawn, Zoflora and killer Sudoku. I think.
And how would a home be decorated to 'adult' taste?
You walk into a pristine white box, the smell of Zoflora Bouquet hanging heavy in the air. The first defining feature of the room is a floor-to-ceiling portrait on the opposite wall, of a grey-suited accountant killing Mickey Mouse, Minion Dave and a unicorn in cold blood. A small shrine stands beside the picture, with flickering Jo Malone candles and a pile of neatly-ordered tax returns.
The television in the living room is void of any games consoles or brightly-coloured DVDs, but the shelf underneath the TV holds VHS tapes labelled "Prime Minister's Questions 1998"; "Question Time Best Bits" and "Thrilling Time Team Episodes - Part Seven". A small notice taped perfectly to the shelf states "Polite reminder: Disney films will cause this unit to self-destruct". You pull your jacket tighter around your Hakuna Matata t-shirt and breathe a sigh of relief that you decided not to wear your Tinkerbell earrings.
You are shown to a small, uncomfortable sofa and sit down. The only drink offered is espresso. When you suggest a hot chocolate, your host chuckles at your naivete. When you request sugar and milk, they tell you that they don't accept such childish requests in their house. After an hour of sitting in silence, your host announces that it is time to introduce a little excitement into your visit. You wonder what she could mean - something on the TV? Maybe some music?
She watches your expression carefully, waiting for a gleeful smile to break out on your face as she reaches into a small grey briefcase beside the sofa and retrieves your evening's entertainment - a carefully-cut-out, smoothed copy of the Times Killer Sudoku from three days ago. Enjoy your evening.
... or something like that.