[This will be a hopefully continued collection of small snapshots of the everyday life of Sherlock Holmes and John Watson]
PART 1: In which, John introduces Sherlock to twitter in an attempt to keep him distracted and relatively calm while John is away from 221B, and they have a conversation over DMs.
PART 2: In which, Sherlock is in want of nicotine patches, acts like a pouty toddler, gets a bit peckish, and ends up leading John to a doughnut shop, where the two are encountered by an unexpected sight, and Sherlock once again demonstrates his brilliance.