I'm in a hallway full of magical doors... and one of them shows an obviously not-nice (gang leaders are rarely nice) halfling approaching with a door-related special object? Yeah, sounds like that needs to be stopped right quick. Whatever might be going on in other doorways, a gang getting access to these doors is probably a bad enough thing that, even if that's not what's about to happen... it might be best to make sure, just in case.
Unfortunately, I knee-jerked to help the kid before I read the actual descriptions, so I guess the halfling gets to rule the world, yeah?