Comment Hostile work environment (Score 1) 675
I would approach your HR group and ask about code of conduct and business ethics policies.
I would also ask about what constitutes a "hostile" work environment and see if this "threat" falls into that category.
I would also make it clear to HR that you feel your work environment has become too hostile for you to work your last three weeks.
What you do from there would depend on their actions.
That's what I would do.