They went through the door. Sherlock looked around and saw a plate with cake on it. "John. You go."
"What?!"
"You're small enough," Sherlock said plainly. John glared. He tried getting up on the spoon, which lay on the floor. After five minutes of trying, he finally got up.
"Well that was stupid."
"Goddammit Sherlock..." John muttered as Sherlock stepped on the spoon. He flew up and grabbed two crumbs of cake. He threw one down to Sherlock. Sherlock ate it and returned to his normal size. Chuckling, he picked John up and set him down on his shoulder. John, who was even more annoyed at Sherlock, ate the crumb. John fell off and hit the floor. Dazed, he got to his feet shakily. Sherlock supported him.