[He couldn't help but laugh, smiling kindly. Okay, past the worst part.]

A firehouse is a building that houses trucks and equipment for firefighters. They live in, cook, and have an alarm there where they can be notified from all across their jurisdiction about fires.

We used the firehouse because it was reasonable to rent and served our purpose. Our line of work was actually Ghostbusting- trapping demons, gods, ghosts, and other supernatural entities that disturbed the populace.