I’ve always loved that little “please” at the end, complete with puppy eyes. That, right there, is the look he used on his mother at 6.
Followed by the offer to tell John about upcoming lottery numbers lol!
This is exactly why they’re so perfect together. He knows perfectly well that John is strong enough to stand up to him when Sherlock needs him to. Even when John secretly (but so obviously) thinks he’s adorable.