Littl'un has decided to start talking like he is just learning English as a second language. Here are a few examples:
"I have been a good boy, yes?"
"Erm, you have forgotten something, no?"
"I think I will stay up tonight and not go to bed, yes?"
"I can have some chocolate, yes?"
It is very offputting when you just want to laugh at him! He always tries it on when he wants something he knows he won't be allowed to have, it's quite a clever tactic. Put me on the back foot as it makes me laugh then I'm more likely to back down. No?!