I admit to sometimes being cynically optimistic.
Am always sure that things will work out for the best. I also expect the worst to possibly happen and spend extra energy on having an extra plan or two at the ready.
If my Plan B and Plan C do not work out then I rely upon what has always worked in the past: Grab a clipboard, make up my own rules, and demonstrate to the buggers how I came to stay and can outlast them.
It is easier to get forgiveness than permission.