LOL, Just because it says Personally tested doesnt mean they are tested in the same way you and me would use it.
The testing they are put through is a process that involves testing them through a designated range of temperatures, probably
99% of the time through machines that heat liquids up to a chosen temperature then vary it. That company is huge so they must make thousands if not millions of these a year.
Testing on a human they would roughly get varied temperatures of the testers.
And this would make it very off.
Either that or they would probably need to employ a lot of sick people.
Ones that like putting a thousand thermos in there bums daily.
Aside from that im guessing theres a law that disallows the sale of items that has been put in someones ass.
You people have weird thoughts