Non suspicio cujuslibet vani et meticulosi hominis, sed talis qui possit cadere in virum constantem; talis enim esse metus, qui in se contineat vitae periculum, aut corporis cruciatum

It must not be the apprehension of a foolish and fearful man, but such as would affect a courageous man; it should be such fear as would involve danger to life or bodily pain. See 1 Bl Comm 131.