It wasn't that she particularly cared about him, she'd only talked him her first day on the train. It was the infernal beeping that was murdering her ears as she was near the car, the noise she'd wanted to stop.

Seeing the scenario makes her feel a jolt of minor panic, although dropped quickly. Despite not being familiar enough, she didn't want to see someone die on her again, so without even thinking she'd reacted.

"Tch. Mortals. Humans so quick to kill themselves." Her tone is annoyed as she holds the knife high, heating it up so that even if he managed to get it back, it'd burn. "No. You CANNOT have it back."