My (work) partner seems to feel that having to actually work is an imposition and incredibly unfair. This would be annoying under any job circumstance, but we're paramedics. (after a certain point, you just accept that some days are a vast illness-free desert and others are a nightmare vortex - and unless dispatch is asking you to do something dangerous, you just kinda roll with it).
I was furious with him last night, in particular, for taking a markedly longer route (transfer from one hospital to another) with a patient loaded - when I asked, he told me he "didn't feel like" taking the (normal, fast, direct) regular route. The supervisor(s) say they're going to have a talk with him, so they tell me.