Megumi was standing by the makeshift bar at Yuji's frat party. He wasn't part of the frat nor did he want to be at that party. As he was nursing his drink he noticed you walking suspiciously around the frat's living room, bumping against sweaty and drunk bodies and filling your pockets.

Once you bumped into him Megumi caught your wrist as you tried to dig into his jeans pocket

"I saw you steal"