I got a chemistry set one year too. After Christmas dinner when all the adults were relaxing in the living room, I mixed a load of the chemicals in a test tube, and was a little disappointed when nothing happened, so I thought it'd be a good idea to warm the mixture up on the gas cooker, but after I'd given the test tube a really good shake to mix it all up, I never took the rubber bung out, so when it got hot it exploded like a cannon, all over the ceiling.
Another year, when I was really into sea fishing, one of my stocking fillers was a mould to make my own weights (which I was told