SS,
A common way out for CO's is to gracefully resign under the health or family responsibility angle. They then slip into an elders appointment and then gradually weight of business etc. get the better of them.
They end up being the one discussed at coffee break, you know the type of thing, 'Where is XXXX, haven't seen him lately, he used to be a CO you know, he does not even attend meetings now'!. Coffee cups smack on table tops in disgust.
HS