Easy:

1. Foreign languages, my native language, math, programming, anything you can look at as a system or acquire as a system.
2. Travel, integrating into foreign cultures, seeing where other people are coming from.
3. Archery.

Hard:

1. The 12 steps: I was assigned these from Al-Anon and came to the conclusion you’d have to be a really different person than I am, come from a much more psychologically twisted background, for these to be a relief.
2. Conversations wherein the point is to talk but not to say anything real.
3. Team sports, esp. basketball and football, the militaristic atmosphere surrounding these.