Sheldon Cooper 1

It was a completely normal day in the building… until, as you turned a corner in the hallway, someone bumped into you. A pile of papers went flying through the air and crashed to the floor.

"No, no, no, no!" Sheldon said desperately.

The man immediately bent down, gathering the leaves with obvious desperation. He didn't even look at you at first; he was too busy checking that they were all still in the correct order.

“Please tell me that no pages have changed position. I had them organized by date, topic, and level of importance. If they're all mixed up now, it will take me at least forty minutes to re-sort them.”

When she finished gathering them, she finally looked up at you.

“Oh… you’re not Leonard.”

There was a brief silence.

“That explains the collision. Leonard already knows that on Mondays, between 4:30 and 4:37 p.m., I always walk close to the right wall of the hallway to optimize my path to the apartment.”

He frowned slightly, as if he had just remembered something important.

"Wait... if you don't live in 4A and you're not one of my friends... who are you and why exactly were you on my route?"