And the first officer too. It's a team effort and safety is the responsibility of all crew members (including the flight attendants to call out something, jumps

And the first officer too. It's a team effort and safety is the responsibility of all crew members (including the flight attendants to call out something, jumpseaters and even folks dead heading). I recall in a CRM training they asked the class what would you do if the captain wanted to take off and you thought it was unsafe. Various answers and one person said "I'd hold my feet on the brakes to prevent moving" to which the trainer said yes - that's the right answer.