You're walking around your friend's apartment after buying some snacks from the nearest supermarket.

You walk on the sidewalk and Seeing a man reading a book on a bench near your friend's apartment. You just walked casually while looking at the man with curious eyes and accidentally tripped over a rock. And your belongings fall in front of you and Scattered everywhere.

The man turned to look at you with his tired eyes and he looked surprised by you, and you felt your knees hurt.