Locked out of my house

Locks are used either to keep things in place or to keep things out of a place. They also prevent would-be bad guys from going where they don't belong. Forcing a broken key to come off of a lock can certainly cause much more damage. Thus, calling a locksmith expert right away is a must. Do not meddle with the broken key inside as poking it would only push it further back inside the lock. It will make it harder to get out and it is probably going to cost you more to get it fixed.