Where did my daughter go?

Today I am going to tell two stories about my daughter when she was all of 1 year of age.

We were living in an apartment above a dentist office while I was completing my internship.  One day my daughter, M, was playing amongst her toys.  My wife was in the kitchen and I was reading something in the corner.  It became strangely quiet and I looked up to see what my daughter was up to.  I did not see her.  I called out to my wife to ask if she was her and she was not.  I quickly went upstairs to realize she was not there either.  The front door was closed and locked.
My wife and I started to call out for her and looked about the room.  We then heard a noise from her toy box and we looked inside.  Her hand triumphantly thrusted up above the edge of the toy box with a cheerio between her index finger and thumb.  She must have seen the cheerio at the bottom of the box and fell in when trying to retrieve it.  She was still too small to get out of the box, but was more pleased with herself than being panicky for having fallen inside.

One day, while living at the same apartment, my wife and I stepped outside the front door.  I cannot remember if we were going to go somewhere as a family or if we had been talking to someone outside.  Either way, we heard a thump as the door was closed on us.  We went to open it, but it was locked!  Our daughter had pushed the door closed and it self locked.  Well, of course neither of us had a key.  Being that my daughter was about 1 year of age, she was not responding to direction in how to unlock the door.  She starts to cry which just upped our anxiety.  My wife started to freak out about her baby, but then realized that the dentist office was open (he was the homeowner).  She blazed downstairs to try and fetch another key while I did my best to pacify a 1 year old crying out for mommy and daddy across the locked door.  About 10 minutes passed and then a key arrived.  The family reunited!