Sex, as best I remember.

Singing and playing guitar, most particularly when it's for an audience that is actually listening and likes it.

Hearing a song for the first time and realizing that this is one that I have to learn and sing, I have no choice. (This tends to make those close to me wish they were dead, however, since I usually play the song over 100 or more times, then start trying to sing it, very badly, before I really know it.)

Back when I was running a lot, the feeling you get after the first hour or so of running, like you're sort of floating, or planing above the surface like a fast motorboat...I still remember that fifteen years later.

That same feeling cross-country skiing - which I still do get.

Downhill skiing, especially in bumps, when it works. It usually doesn't. And I don't do it much anymore because it costs too much and I'm to brittle.

Waking up on a weekend morning when the sun is out.

A really good, powerful dump. (Before you curse me for a crude slob, ask yourself honestly if it isn't true.)

Peter.