Besides, I could not in good conscience [Sebastian, don't use big words you don't understand] allow you to go on rides immediately after eating. The rides will still be here later. Why don't we go back, the young master can have his tea and cake and let that settle while finishing his homework? If you could indeed complete it once back home there cannot be much left of it to complete, yes? It will not be a long delay.
Will it not be more enjoyable to know you are free to spend the rest of the afternoon as you please with no work waiting for you?