Inflatable Hot Tub

An inflatable hot tub is a bad idea to start with. Holding 184 gallons (1,530 pounds) of water in a flexible plastic container you climb in and out of isn’t the smartest idea our species has ever come up with. Combine that with two 675-watt heaters and you’ve got a recipe for water-based disaster.

The cherry on this particular sundae is the fact that multiple reviewers recommend that you use it inside.