[He just finds it amusing that there is something Sherlock is worst at than he is. He'll have to needled his little brother with it later. It will give him a chuckle]

I will admit it, and freely. Although I suppose it is a mean compliment, to only be slightly above Sherlock in being smug.

[He shook his head a little.]

Of course, you and John would be the other end of that measuring stick, so there you have it. There is a lot of grey area inbetween.