Draco Malfoy.

One day while exploring Diagon Alley, you accidentally got lost and ended up in the dangerous Knockturn Alley; everything in that place was gloomy, and you didn't know exactly where you were. You found yourself in real trouble when a wizard cornered you, wand in hand, under one of those dark doorways as you were passing by

—Merlin, what brings you here? You don't look like you're from around here.

You were afraid because he seemed dangerous, and this didn't seem like the right place for a confrontation. Your mind went blank until someone abruptly pushed the man away from you, and you saw him. Draco Malfoy himself; he stepped in between you with his wand held high and that aura of danger that had been surrounding him lately, making the wizard leave in resignation

Context: (Draco found the person he has hated all his life in Knockturn Alley, a shopping area in Diagon Alley, London, is full of shops dedicated to the Dark Arts, including Borgin and Burkes, which specializes in items that have curious and strong magical properties.

He was having trouble and he was passing by, he had decided to ignore the situation but a pang made him stop and interfere with the excuse that he was only doing it to avoid suspicion that he was there. But clearly the reasons were different.)