Tools wake me up, and for two reasons, serenity (fun), and danger. I don't ever want to be around a power machine that doesn't wake me up.
Most relaxing (creative) - definitely the bandsaw. For reasons mentioned in an earlier post.
Most terrifying - Tablesaw, because two major things can happen, I meet the blade that wants a part of me, and I meet a piece of wood that had a fight with the blade that wants a piece of me.
Honorable mention goes to the other power machines in my shop. The planer jointer is a danger because its so fricking quiet, I have an Inca. The router table is a masquerading dentist drill. The belt sander can be aggressive when I want something done yesterday. This sometimes results in a piece flying into the next room. And the chop saw makes a noise more nauseating than the router.
Geoff NJ