A latch only grown-ups can open (at first)
The child-resistant door keeps little explorers in and busy siblings out — until the week your toddler solves it, roughly the same week you start double-checking it before you walk away. It clicks, it holds, and it keeps closing after the hundredth yank, which is more than can be said for the hinge pin that works its way out from time to time. You'll notice the door getting lighter. That's the pin.