- 0Jan 15, '12 by UTVOL3Corrections nurses-a quick question. I am considering a Federal Prison nursing job but I have small kids. Well, actually I have 2 in elementary which is what poses the difficulty for me finding a shift I don't mind working. USA jobs job description says there is something called "flextour" where you set your own start and stop times for shifts. Does that sound...realistic? What shifts do you work? Are they typicaly 8s or 12s or something else?