Concepts for thought
There are 2 important concepts here that should be food for thought.
De-confliction, and threat management.
I was involved in ALPA Air Safety for a number of years. I always briefed my crew (other pilot and flight attendants) to please speak up at ANY time they heard, smelled, or saw ANYTHING that was out of the ordinary or that they had ANY cincerns about. This ensured everyone involved that not only was their input encouraged but that it was important for safety of flight. It only takes around 1 carpet dance with the FAA, or the CP office at a pilot hostile airline to change bad attitudes in the least case, up to and including an incident/accident in the worst case.
Police your attitudes or they might very well be your un-doing.