What wasn't such fun was having him tell me how to play pool as he'd been "taught by a pro" (Grandpa) for one lesson!
Tranquility. Whilst it was pleasant to do nothing, without trying to, I seemed to be creatively distracted. Psychologies magazine's Oliver Burkeman says that by fully occupying your mind on something else, you reduce the amount of attention which is otherwise used up by worrying. Hobbies requiring attention can be far more effective, he says, at reducing stress than traditionally relaxing activities. I fear this is true for me, so I've extrapolated that suggestion to include smaller-term projects, not just learning an instrument or a language, such as he recommends.
Do I need to go back to all my "Busy?" posts and update them? This also links in with Happiness by Design, a book by Paul Dolan about finding pleasure and purpose in everyday life. Watch this space!