[Mycroft frowns, and goes for another few jabs. Because he was a mature adult and this was the proper way to force someone up, certainly.]

Get up! There was something under--

[A pause as he realized how ridiculous this sounded.]

--just get up and let me have a look at your arm, Sherlock.

[He reaches for the tablet to illuminate his own arm, and stares for a long moment as he sees...nothing.]