"You do realise that this is getting rather ridiculous?" John said.

"Steady"

"Sherlock" John sighed annoyed and angry. "Even when I was younger we didn't do that. Maybe only if there was no other option."

Sherlock was quiet. He did not really look at John, he had to concentrate and pay attention.

"I'm not entirely sure about-" John tried again.

"Careful" Sherlock advised sharply.

John groaned.

"If you stop complaining this would be more bearable for both of us." Sherlock now said drily and also in his voice was the sound of annoyance.

"But I don't understand why I have to do this with you?!" John replied who could not believe that he found himself in such a preposterous situation.

"Because you are here." Sherlock answered. "And you are my 'colleague' as you often rank yourself in your Blog and to others."

John rolled his eyes.

"But why couldn't you-"

"It's too important." Sherlock interrupted.

"And why did you even start?"

"It's too important."

"And why didn't you see that there was-"

"I forgot."

"Forgot?!" John gasped.

Sherlock was silent again because this silly conversation was unnecessary distraction and simply useless.

"You also do realise that this could be dangerous for both of us?" asked John after a few seconds of silence.

"That thought did occur to me." it came back dryly and without great interest.

John shook his head and sighed desperately in disbelief. This was all becoming too much for him. It was ridiculous, of no use, annoying and dangerous.

"Sherlock" John now finally spoke out loud and began exasperatedly to gesture with his hands. "I am not doing this for you anymore just because you're too bored and lazy to buy a new test tube rack for your dangerous experiments!"

"John!" Sherlock interrupted alarmingly. "Stop shaking-"

"No! I had enough, do this stuff on your own!"

The liquid chemical now almost reached the opening of the test tube as John raised his voice. Sherlock now almost shouted at John very alerted:

"John, for god's sake! Stop moving your-"

The test tube was tilt too much and the yellow liquid dropped out.

A quiet curse under an even more silent cry.

Both of them sat in the living room. Sherlock was, as always, complaining:

"But I have to play my violin!"

John chuckled to himself.

"I told you that it could be dangerous for both of us."

Sherlock groaned and ran a thick bandaged hand through his curly hair.