Yes you would. You're human.
Sorry, but wrong.
My day job frequently involves making split second decisions and taking action where serious injury and lives are potentially at stake.
In order to make such decisions in a timely manner I think about all possible scenarios and consider my reaction to those events prior to it being necessary; call it forward planning if you will, or even conditioning may be a better description.
Any situation, if practised frequently enough even if only as a thought experiment, can become 'human' nature.
