Dodging a junior manning assignment on your day off is pretty easy as long as you don't answer the phone. However, like was stated above...they cannot schedule you more than 2 hours after pairing termination. Should the company get a hold of you on your day off or ask you to fly beyond that 2 hours...you can basically laugh at them and hang up if you so desired. It basically means crew sked can't hunt you down at the end of a pairing. Once you're off...you're off.