How much longer they work compared to all the lazy people in their office.
We have one of those at work. I was talking to her the other day about a gentleman who was helping us out. She said "You have no idea how much time it saves us over in X department!"
Cue me picking up my jaw off the floor.
"Um, yes, I DO, actually. We have the exact same job."
"Oh, but...." and she went off on a litany of how I just didn't know how much harder
it is to be her, in her department, etc., etc.....
Seeing as how her department is right next to mine... and she has very little to do sometimes... there went my jaw again.