Related Clues:
- Strongboxes commandos lined with iron
- They go off when tripped
- Fire startlers?
- Barnet seals?
- Hotel's hiding places
- Secure fasteners
- They’re sometimes cracked
- Some cell signals
- Heist targets
- Cellphone ringers
- In-the-wall security features
- Almost all weapons creating panics
- Keys' counterparts
- Strongboxes to ship containing argon and iron
- Fears nearly all weapons