Does raising kids count? Hmmmmm guess that's more like a job.
I used to enjoy tinkering with computers, building them from the ground up, order parts and assemble. Couple years back I built a multi-media server installed unix and then remotely logged in with a command line shell and configured all the settings, network shares (samba) etc... Then I got board with them after a while and wanted a new challenge. (Been tinkering with them since 84)
In spring of 2013 I picked up my first DSL camera, joined a few forum sites and self thought myself the basics. By October, I switched to fully manual mode in the camera and dropped JPEG format. A year later, and 6 more lenses, I'm fully enjoying this with even more passion than when I first got it. There are soooooo many techniques, and mastering lighting and composition is going to take years. I love challenges and learning new things. It's a trait that I hope I can instil in my kids.