I love how John walks up to the police tape with both hands in his pockets, barely slowing down, knowing that Sherlock is going to lift the tape for both of them.  They’ve known each other for less than 48 hours, but in that time they’ve become flatmates, Sherlock has cured John of his debilitating limp and offered him a life worth living, and John has saved Sherlock’s life.  Of course Sherlock is going to lift that tape, and of course John knows he’s going to do it.  Whether you ship them, or think they are just best buddies, they are made for each other.