The brass front door deadbolt key you grabbed off your kitchen counter before running errands this afternoon twists halfway in the lock before jamming solid. You jiggle it gently, push the door tight to align the latch plate, and try again with no luck. The last thing you want to do is pay an after-hours …

Your brass front door deadbolt key turned a full 90 degrees in the lock just now. The bolt audibly slid out of the jamb strike plate, and you turned the doorknob fully, but the door sticks fast without even a sliver of give between frame and edge. No scraping, no jiggling, no sound of loose …

The nicked, 15-degree bent brass front door key on your keychain still slides into the deadbolt about half the time you try it. You’ve twisted it back straight twice in the last month when it got stuck mid-turn, and you keep telling yourself you’ll grab a replacement soon, but you haven’t made time to stop …

The brass deadbolt key for your front entry sticks half-turned in the exterior lock face, its textured plastic head catching the last of the afternoon sun. You’d stepped out to grab a package off the porch three minutes prior, fumbling to set the lock behind you before your 60-pound golden retriever could dart out into …