So it seems. Hmm. [She pauses briefly to run over a few possible ideas, and maybe to put that distracting shirtlessness out of her mind.] There are a number of alternatives more resistant to force than a conventional padlock, but as well as procuring a lock, you'd likely also need appropriate tools with which to work on the door... And given the diversity of Dream Eaters, it's hard to imagine any single lock keeping the majority of them out. Are you sure the lock is the best area to focus on?