One of my good friends serves our country. At times his duty calls and he must go. Soon, "go" will mean a deployment and many months of separation from his family. He and his wife tried to explain that to their 4-year-old. You know, 4! That age when a little one is just understanding the meaning of "Daddy will be gone a long time."
"Why, daddy? I don't want you to go!"
"Because, son, it's my duty."
"What's duty, daddy?"
"Well, son, that means it's my job and I have to go."
"But (whimpering) daddy, I don't WANT you to go!"
"Son, if daddy doesn't go, I would have to go to jail."
Daddy told his son the truth, but there's one problem...
...a 4-year-old is now telling people that his daddy is going to jail.
And he will be gone a looooong time!