Your first response to me was "Until production suffers....." Little passive aggressive wouldn't you say? I never said it doesn't happen at UPS, I'm saying it doesn't happen at my center. My boss wouldn't come to me and say fire someone for production. You truly have to be garbage for us to fire you. I'm talking like lacking the ability to load 100 packages in an hour, never mind 400. If you can't do that, you should be in another line of work anyways. If you show the desire to work and want to improve, I'll work with you to get better or find something you can do instead, like bag smalls.
You on the other hand. I would just say to my boss "Okay, be right back."