A/N: I am so incredibly in love with the idea of Sherlock wearing John's dog tags. Just... IT'S SO CUTE AND UGH HUSBANDS. So yes. This kind of had to be written. Enjoy!

-o-

If it hadn't been so blatantly pointed out to him, John probably wouldn't have noticed. He didn't possess the observant mind of his best friend so it didn't bother him that he wasn't the one to see it first. What bothered him was that of all the people who could have pointed it out, it just had to be Anderson.

They had been at a crime scene, as usual. The victim was an elderly male with curious burn marks around his wrists and ankles, and Sherlock had been in the middle of a rant when the forensics scientist made his presence known by scrunching up his face and saying:

"Are you wearing a necklace?"

John's eyes turned towards Sherlock; he fully expected the other man to fire off a line of snapping retorts and as many insults as he could think of that included the word "idiot", so he was surprised, to say the least, to see Sherlock caught completely off guard by Anderson's question.

"The last time I checked your job was to look at dead bodies", he snapped at last. "Why you would choose to look at me is beyond me."

His reply probably sounded fierce to the rest of the Yard, but John recognized the reserved tone in Sherlock's voice. Distant, like he could have come up with a much better insult but was too distracted.

"Are you actually wearing a necklace?" John asked when they were in the safety of their cab just a few minutes later. Sherlock simply sighed.

"A man has been murdered and the talk of the day is wether I'm wearing a piece of jewellery or not. Sometimes I wish my mind was as easily distracted as yours."

"Sherlock."

"His collarbones."

"What?"

"The victim, John, the victim. It was all about his collarbones."

And just like that the brilliant mind was on a different track altogether. John chose not to acknowledge that he missed the detective's pale eyes on him that evening.