I've been thinking about the freeing of an incarcerated Peter, as described in Acts 12:6-11.
I imagine that Peter was content to remain in jail, if that were God's will, even though a jail of that era must have been a dirty, cold, forsaken place. I'm sure he knew well what Paul later described in detail; the honor and glory of sharing in his Lord's sufferings, for His purposes.
But God had other plans, and sent an angel to free him.
He must have been afraid. Afraid that worse pain and perhaps even death awaited outside, in the form of two guards, rather than freedom.
He could have remained there, questioning what the angel meant. He could have argued scrupulously with the angel about his need to participate in Christ's time of imprisonment, and stayed there.
Did he have time for an internal dialog, debating the risks?
What would have happened if he said NO to the angel?
What would have happened if he stayed there, shackled in darkness?