Rewarding hobbies have been Model Aircraft, flying versions.
Boat Building, (hand carved Sitka Spruce masts) two Sail boats, one Ski Boat, One Cedar strip Canoe.
Portaging in to Wilderness lakes for Fishing.
Solo'ed a Piper Cherokee.
Sailed on a 4 master.
Last effort, rebuilt a burnt out Jaguar XJS V12.
When nothing to do, tinker with Electronics
Al.