On my first day I was told two things:
1) Don't disagree with and get on the bad side of Sr. Management and assistant, otherwise you are out - they have an easy time firing women.
2) Don't wear jeans, the guys are allowed to, but not you.
Sr. Management has no clue what they wants, won't admit it - you have to go through trial and error and look incompetent in their eyes.
Sr. Management does not care about employees - if there is to be a company day off that falls around a holiday, they will leave it to the last minute to inform the employees about it - making travel costs expensive for those employees who have family outside the state.
They don't tell you during the hiring period that some years the company shuts down for a week or two, forcing employees to take unpaid leave - and that's decided and shared last minute as well.