Where bad choices make good stories
I'd bet some numbnut put an oxy-acetylene rig with a leak in it and didn't turn the bottles off.Add a space heater with a thermostat that sparks when it turns on or off and, with the doors closed, you get nicely bulged container.
They call it Tuesday, no meth was harmed.
I moderate my comments due to spam and trolls. No need to post the same comment multiple times if yours doesn't show right away..