Need To Foster A New Roster

(I get a phone call from work one morning.)

Coworker: *sounding angry* “[My Name], where are you? You should have been here 15 minutes ago.”

Me: “I’m not supposed to be working today.”

Coworker: “Yes, you are; it’s on the roster.”

(I quickly dress and rush in, thinking I have read the roster wrong. I double-check the roster when I arrive and find that my name has been handwritten onto the typed roster. I end up talking to the coworker who called me; she works in our office and is normally a self-entitled b****.)

Me: “When was my name written on this?”

Coworker: “I wrote it on [Day before yesterday], after [Manager] told me you were needed.”

Me: “Why didn’t you call me about it? I didn’t know about this change.”

Coworker: “It’s not up to me to call you; you should be checking your roster every day without fail.”

Me: “So, I am supposed to come in on my days off just so I can check the roster?”

Coworker: “Stop being an idiot; you are supposed to check your roster after every shift.”

Me: “My last shift was four days ago. Tell me again how I was supposed to know that my roster had been changed without my knowledge.”

Coworker: “WELL, HOW WAS I SUPPOSED TO KNOW THAT?”

Me: “By reading the roster.”