...Faith and belief have no place in science. We leave those at the door and pick them up later on the way out.
You mean to tell me that as soon as class is over, you go on believing in things that are unobservable and irrational?
Microsoft make it REALLY easy to join XBOX Live but virtually impossible to leave. This is just the most convenient way to leave.
The same is true of the U.S. military.
Nothing is finished until the paperwork is done.