Reading through this thread, it seems to me that most of us share the same hobby of learning....... I've collected more hobbies than I will ever have time for.
Shooting, reloading, hunting, fishing, auto mechanic(used to be a living), pc programming, 2-way radio (CB and SSB have to add ham one of these days), cooking, cast iron restoration, wood carving, leather-work, plastic modeling, rc-cars, and most recently homebrewing.
I know there are others, but like I said, more than I have time for.