"So is he. So am I, for that matter."

There's something about the way Tony curled up with his head in Sherlock's lap and sniffled a little and didn't say anything for hours, just smiled.

And he has to admit he also gets something out of watching Obadiah fail to put the pieces together. He will eventually, of course. And Sherlock will absolutely refrain from gloating, or holding it over him, or any similar activity.