When other people in my department go on vacation, management says we can't have any extra help to replace that person.  I end up with a lot of overtime.  I hate overtime.  When my eight hours are up, I want to go home.  When I go on vacation, they bring in all kinds of help so everyone can go home on time.  Every time I go in on the Friday of my vacation to get my schedule for the next week, I'll ask how the week went.  They'll always say something along the lines of so and so from up front helped out or so and so from Pick Up helped.   Now, I should feel flattered that they can't get along without me, but if they need to cover my hours when I'm on vacation, then they need to cover other people's hours when they're on vacation.