What to do after it’s out — so this doesn’t happen again
Once you’ve removed the broken piece, do not just shrug, grab the only spare from the junk drawer, and carry on as if the universe didn’t just warn you. Test the lock gently. If it still feels rough, sticky, or reluctant, clean and lightly lubricate it with a proper dry lock lubricant. Experts recommend light application, not overdoing it, with dry formulas designed to reduce buildup rather than create more of it. If the lock still binds after that, have it serviced. A key snapping is often a sign that something in the key, the lock, or both has been under strain for a while.
