Remember when hobbies were more than just a way to pass the time - they were a chance to push the limits? From making model planes with glue that gets you high, to cooking up explosive rocket fuel in the backyard, to strapping ourselves to homemade kites and launching into the unknown, these hands-on pursuits often came with a dangerous edge. It's a thrilling, hair-raising trip back to the crafty obsessions that prove our hazardous history was never just a hobby.