Ok, this is complicated, so you need to hang on to every sentence, every word if you don't want to lose me. This was a very interesting episode that happened today, and hence I wanted to jot it down before even I forget the intricacies!
We have four house keys. Let us call it A, B, C and D: A is usually kept in the house or wife has it, B is with daughter, C with me in my office bag and D with mom (who stays in a different house close by, just in case we get locked out, we can always go to her to get back in).
The tale began yesterday when I took key A in car and forgot it in the car itself while coming back. So, now A is in the car, not lost. Key B is usually with daughter but she has misplaced it. So at this point:
Today, wife planned to go out at 4 pm just when daughter is supposed to get back home from school. So, I gave my key C to wife and asked her to lock the house while she is going. Wife told daughter that in case she decides not to go, she will stand in the balcony at the time of her (daughter's) arrival so she can come home directly. If she (wife) does go out, there will not be anyone in the balcony which will be an indication for her (daughter) to go to my mom's house to collect the key D to enter our house. Since key A is still in the car, I took the car key with me so that I can get it on my way back from office after getting out of my office cab in the evening. So at this point:
At 3 pm, wife decided to go but she forgot where she kept the key C which I had given to her in the morning! Since she had not gone out of the house, the key C was within the house itself yet she was unable to find it on time and it was getting late for her to leave. So she decided to get the key D from my mom, lock the house and leave. My mom decided to come to our house instead and stay until her granddaughter arrived from school, and my wife agreed, completely forgetting what she had told my daughter about the balcony plan.
My wife called me up and informed me all this on her way to the event, and then I thought I will call my mom and ask her to go back to her home as my daughter will come to her house directly since no one will be in the balcony, as per the plan decided in the morning. But then, my mom had forgotten to get her mobile to my home, so I couldn't call her! So, we were now in a spot! The daughter will not see anyone in the balcony and hence will go to my mom's house only to find no one there because my mom is in my house!