Because you haven't put enough effort into your Christmas lights until your family is in danger.
Question: How many NStar engineers does it take to fix a tree that has fallen over on a power line and caused an area-wide power outage?
Answer: The jury is not sure yet. So far, about a dozen have dropped by and this is the best they came up with. When questioned about their solution, they seemed surprised that we did not agree with the superior creativity of it.
To be continued...