Previous job: employer did not care about the staff.
Typical week was:
M 8-5, on call until 8a
T 8-5
W 8-5 oncall until 8a
Th 8-5
F 8-5, on call until 8a on Monday.
Lather rinse repeat.
Worst was out for 36 hours, leaving Friday am, returning Saturday.
I put up with it for 2 years, 2 months, and 2 days.
Which explains current job.
Currently 1p-10p M_F, on call one weekend a month, 12 on 12 off.