Journal Kurt Gray's Journal: Welding Class
Last year I learned glass blowing and I learned it's much harder than it looks. I produced a few globby paperweights, some ornament balls, and two really sad attempts at a drinking glass. The drinking glasses a so sloppy and warped they almost look like intentional works of art.
The year before I learned scuba diving, got Open Water PADI certified. It was hard to enjoy the experience since by the time our class got to ocean it was October, and diving of a New England beach in late October when the water is 50-degrees or less, even in a dry suit, the frigidity of the water and the bulk of your diving gear is enough to make you quickly consider if perhaps watching underwater scenes on TV is in fact more relaxing and comfortable than actually diving into the frigid deep yourself, not to mention watching it on TV is a whole lot safer. But yes it was worth it just to try it. I haven't done more than snorkel since though.
I highly recommend adult education classes. I also took an import/exports business class recently just for the hell of it, you never know when this stuff will come in handy.