Imagine falling asleep while leaning on sherlocks shoulder and he does not know what to do and so he tries awkardly to pet you.
Y/N: Well, I don*t know, Sherlock…*yawns*
Sherlock: Of course you don’t know! What bothers me, is, that I don’t know! How is it possible, that…Y/N… …Y/N, what are you doing? *watches in horror as you snuggle up to his shoulder* John, she doesn’t answer me, why doesn’t she answer me??
John: Maybe, Sherlock, because you have been dragging her arround for this case for three days, while giving her barely an occasion to rest, yet even sleep?
Sherlock: She is asleep? How can she fall asleep during such a case and HOW can she fall asleep on my shoulder? What am I supposed to do??
John: Well, you rather not wake her up, or I’ll personally hurt you.
Sherlock: But, I….
*panics slightly, before awkwardly attempting to pet you*