It mentions football and food a lot

Georgina ,you’ve made me laugh so much – not so sure if it is about the sniffing or you secretly reading Rosie’s notebook .
Funnily enough I have just stumbled upon a diary Jacob wrote when he was 10 . On about every other page he writes ‘Mum, I know you are reading this ,so please don’t.’
The joke is I have never seen it before in my life !