Hi, Onlymedid! Correct me if I'm wrong: two of the major stressors in your working life are
- a certain difficult coworker, and
- being in sales.
Do you see any way to change or neutralize either one or both of those without actually leaving your company?
In any event, may you find a way to quarantine those feelings of hatred for your job such that they don't poison the rest of your life.
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My dog

mastered the "fetch" command. He would communicate he wanted something, and I would fetch it.