Sometimes John comes home from work to find Sherlock asleep on his bed. Whenever he does he smiles and carefully slips back down the stairs. The sight of Sherlock with so little tension in his body is so rare that it always fascinates John. John walks around town thinking about Sherlock still asleep on his bed. When he arrives home at the normal time, Sherlock is always wide awake and puzzling over an experiment or a case with any sign of his recent nap carefully hidden. John always sleeps better on those days.
lestrade has a page in his little notebook full of tally marks of how many times he’s caught sherlock trying to sneakily check out john’s booty
sherlock totally thinks he gets away with it and no one knows about his booty gazing
after sherlock and john are together, lestrade shows john the notebook and they have a good laugh
after john proposes to sherlock, he uploads pictures of lestrade’s notebook to his blog with the caption “i thought we’d better get engaged so the idiot doesn’t have to try to be sneaky anymore and lestrade doesn’t have to keep wasting notebook paper”
sherlock is embarrassed about being busted, so he leaves a snide comment remarking that lestrade is still horribly unobservant for a so-called “detective”, because he doesn’t have a page tallying all the times sherlock brushed up against john’s booty and made it look like an accident
mrs hudson (commenting from mrs turner’s next door), molly, anderson, and mike stamford all pipe up with “but i do”
While rewatching the series 3 Sherlock trailer (x), I noticed the prominently placed coins:
"I don’t care how you faked it. I want to know why."
This taken purely at face value is great foreshadowing.
John’s location inspired me to look into analysis of coins in dreams.
"The impression of coins in your dream is generally interpreted as the overlooked opportunity that was crucial for your life." (x)
John’s dreams are often about Sherlock, and the presence of the coins is no different. John missed the opportunity to tell Sherlock about his feelings before Sherlock faked his death. The dream coins add meaning to Mary shooting the coin. Shooting the coin symbolizes an attempt to end the second chance at this missed opportunity.
Another possible interpretation or deepening of the first option is that John is haunted by the fact that he didn’t save Sherlock’s life the one time he thought that it mattered most. This fits more with John’s voice overlay at that point in the trailer (”I don’t care how you faked it. I want to know why”). With this missed opportunity, Mary shooting the coin off center would be reflecting her shot that didn’t kill Sherlock. Mary shooting Sherlock with the risk of killing him left John with little opportunity to physically save Sherlock’s life again. I say physically because thinking of John seemed to help Sherlock restart his heart. If Sherlock had died, Mary would have started the cycle of lifelong regret again and coin dreams again. John needed to hear why Mary shot Sherlock from Mary herself, but Sherlock had to craft a story to secure both his and Johns relative safety.