One last note: If you left before your time the Society would send a letter to your draft board stating that you were no longer a full time minister! What a way to treat volunteers.
As far as married brothers, they never had an all night watchmen duty. Their excuse was because of the needs of their wife at night. I'm not kidding. Any exbethelites want to verify this. I found this out at the farm when I had weekend duties at farm 2. The warped thinking and reasoning of the Society still amazes me.