There have been Amethysts vs, Whatever, does this feel good, and glass related things in general posted. Yes, I have read each discussion, possibly answered them too, just to try to help people, but not many if at all really go into detail about using glass in it's (many) ways. What I mean, is that, I know you can heat glass, and correct me if I'm wrong, in heated or cooled water, but is there a specific temperature that will shatter the specific type of glass the Amethyst is made out of? How hot? How cold? Is it okay to heat these in the microwave? What about a quick pre-heat in the oven? Is any type of actual soap recommended to wash this toy in? Hand soap? Antibacterial? What about hand sanitizer? Opinions about any of this? Is it safe to twist this a lot once this toy is inserted? Has anyone actually tried this? Did you hurt yourself? What?