Annoyances of working

Why does work have to call on the days that I am already working. I mean they have the schedule, can't they see that I am already on it? I don't envy the one who does our schedules at all. Not one bit. Keeping this many women happy every month is an insurmountable job, but some things just don't make sense. Like calling those who are already scheduled to work. To say nothing of when they call my cell while I am on the floor working! Oh well, I wouldn't want the job so mayhap I should just leave well enough alone.