Overtime And Time Again

(I am a new hire who has been getting a lot of extra hours because several people were fired right after I was hired, and I do my work well and quickly. A new coworker was hired a few days after me, but he’s not such a fast learner.)

Assistant Manager: “Hey, [My Name], can you stay a couple hours late today?”

Manager: “Dude! I can’t keep giving him overtime hours! You wanna give up some of your OT hours or something?”

Assistant Manager: “Man, I got no one else!”

Me: “Don’t you have [Coworker] tonight?”

Assistant Manager: *brief pause, turns back to Manager* “I got no one else!”