Boss:  We need 30 of these made, how long will it take you?
Me: Well, each setup takes about 15 minutes so, I’d say 15 hours.
Boss: But that’s enough time to make 60.
Me: Have you ever done this process?  It’s mindless process intersperse with ones that require mental focus capable of bending spoons.  I have to take a coffee break every five or my brain will simultaneously explode from over-use and atrophy.
Boss: Yeah, I’ve done it once or twice myself.  I’ll give you three days.

That’s empathy.