I had given Jack a bowl of food but he had seen that I had a packet of chicken nuggets on the counter and he wanted them. I tried to explain to him that it would need to be cooked first and he could have it after

 Jack "No, I don't want to have that after. I want to have that Fridays"

 He has some idea of other days of the week. He knows we normally go and see Ollie on Tuesdays and has been know to say things like

"No, I don't like Thursdays. It's not Thursday. It's Tuesday"