addled posted...Keep a copy of the email if possible and save it, don't act on unless you have to.
If you feel that the company is treating you like garbage from now on and you can prove it's because of the email then you might have a case.
Honestly, if the company does something, the TC can use that e-mail to support a lawsuit of some sort against the company. I would definitely save that e-mail and document anything else the supervisor or any other person does against the TC. The courts love precise documentation.
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I want my Earthbound!!!