Raising a child can lead to countless frustrating situations...

And if they decide to lock the door,

the only solution is to pull off the doorknob.

For the person who has to open the door, and no one has locked it,

it's a moment that proves why you need tools.

However, I'll have to buy a new doorknob and replace it tomorrow.

There goes more money...

The good news is that the doorknobs here aren't as expensive as in Korea...