Will it damage your home's front door if you open it without a key?

Depending on the technique used, it is possible to damage the home's front door when trying to open it without a key. Methods such as using a bump key may damage the lock, while other methods, such as opening an adjacent window and unlocking the door inside, may not.

Using a credit card only works to open certain types of locks, but it does not damage the door, though it may damage the credit card used for the task. A set of lock picks that are used skillfully may not damage the door, but inexperienced users may damage the lock when they use lock picks.