Why does one have a thermometer in the out valve and why is it burned to heck on the bottom.
I'd guess someone was trying to make a still out of it.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk