Over the weekend a science kit for my kids mysteriously arrived in the mail. I was asked to "make it work." As a theoretical physicist, I am congenitally incapable of getting any experimental apparatus to perform as it's supposed to, so when I installed the batteries in the battery holder and attached it to the small electric motor, nothing happened. (Yes, I did remember to turn the switch to the "on" position).
I tested the batteries and motor separately, and both of them were working, so the problem had to be in the battery holder supplied with the kit. Here is how the conversation proceeded with my 11-year-old daughter:
Me: There's a problem with the battery holder. I'm going to have to break it apart to see if I can fix it.
Daughter: Now that's science.