A Back Yard Volcano
The last thing most people would put on their Xmas list is “Dear Santa, please could I have an active volcano in my back yard”. For sure there’d be advantages: A built in BBQ that could handle pretty much any size of steak, and I wouldn’t have to pick up after my dog’s back-end eruptions (the last big clean up, which thankfully my wife did, clocked in at 29 “deposits”). Aside from that and the free orange light show, it’s hard to see any real benefits to rivers of lava squashing the Hydrangeas.