Yes.
Imagine being paid to produce something. Could be anything. Wool mittens. So you knit your mittens one by one and you put them into a neat pile next to you. You're proud to see your pile grow. You're doing good work.
Then Greg from accounting comes by and sets the pile on fire. He goes "don't worry about it Matty, you'll come out ahead at the end of the year. I'll only do this to you 3 or 4 times a year. Don't sweat it. You were working too fast anyway."
Even if Greg is right, you're gonna wish cancer on him and his whole family for the rest of time.