John sighed as he once again got into the checkout line. Hearing the sigh, and seeing the items in his basket, the man in front of him struck up a conversation.
"Pregnant wife?" he asked, nodding towards the jar of peanut butter and two cans of pineapple John was carrying.
"Yeah, and this is the third trip this week. You'd think she'd pick something a little less disgusting to eat day and night, but who am I to argue with a pregnant woman?"
The man laughed. "Amen to that. I'm Clancy Locks, by the way."
"John Watson. Oh, hold on, let me get this." This last was in reference to John's cell, which had just begun ringing.
"Hello?" he said into the receiver.
"John, I need you to listen carefully." said a familiar voice.
"Wait, Mycroft? Why are you calling me?"
"I was just getting to that, if you had only let me finish. Sherlock has shut off all the security cameras in 221B. While it is only a very small possibility, this may mean he has relapsed. Due to the rather personal nature of the situation, I would appreciate it if you could check up on him, as I am currently engaged."
Hearing this, John barely waited to tell Mycroft good-bye before he was dashing towards the exit. Clancy watched in consternation as he left, until a sudden realization had him chuckling to himself. "Must've come sooner than they thought."
After flagging down a cab, John tried to call Sherlock, but the phone went straight to voicemail. Not surprising in and of itself, but the new threat mentioned by Mycroft caused John to immediately jump to the worst possible conclusion. However, during the ride back to 221B, he gradually calmed down. Thinking everything through, John realized Mycroft wouldn't have let Death himself stand in his way if he seriously thought Sherlock was getting high.
"He probably just mentioned that so I'd be his personal lackey to get Sherlock to put the cameras back online." John muttered to himself, along with few other choice words.
The cab finally pulled up in front of the flat, and while John had managed to mostly talk himself out of his fears, he was still slightly worried. So, after pulling out his gun, he slowly climbed the stairs. Pausing outside the door, John thought he heard something.
"Is that... singing?"
Pushing the door open, John stepped inside and what he saw was so far from what he expected he burst out laughing. Because, curled up in his armchair with his laptop on in front of him, sat Sherlock. Singing.
"My little pony,
my little pony.
Ah ah ah ah.
My little pony.
I used to wonder what friendship could be.
My little pony.
Until you all came and shared this magic with me.
After having quickly stopped and hit pause when John started laughing, Sherlock looked at him with the most embarrased expression John had ever seen.
Barely able to stop guffawing long enough to speak, John still managed to gasp out "You... you watch... My Little Pony?!
Attempting to recover some of his dignity, Sherlock said "It really is rather good. You should try it, John. Don't judge things you've never seen."
Regaining his normal control, John quieted down and plopped into his chair. "Fine."
"Fine?" Sherlock asked, not understanding.
"You're right. I shouldn't judge something I haven't seen. So, show me."
Scarcely able to believe what he'd just heard, Sherlock placed the laptop on a table in front of them and started the first episode.
...
After an hour had gone by and he had yet to hear from John, Mycroft began to get a little worried. As soon as his meeting was over he rushed over to 221B and barged into the top flat. What he saw nearly caused him to fall back down the stairs. In front of him sat Sherlock and John, singing along with Pinkie Pie.
