Chemistry

“Credit where credit is due, Sherlock. You know these London streets like the back of your hand.”“Of course, I do, John! How else would I run so fast if I didn’t know the general directions of pedestrian traffic, oncoming car traffic, signage, roadwork blockages-““Just say ‘thank you’.” John retorted.“Okay, fine,” Sherlock huffed, but not without a gleam in his eyes as he looked at the army doctor, “Thank you.”“You’re welcome!” Came the enthusiastic reply, and that was the only thing ever so exuberant about their walk home.Or, Sherlock and John make it back to 221B after a long day, and Mrs Hudson is there to greet them. It's clear that feeling tired isn't the only emotion flooding through both the Baker Street Boys.