This may be dumb, but I just thought it was a weird coincidence.
We all know and love how Jack would always call Ennis "Friend".
Do any of you remember when Bill Cosby's son was killed? Well, soon after Cosby began wearing shirts that read "Hello Friend" and the "Hello Friend Foundation" was founded; this name was chosen because that is how Cosby's son would greet everyone. Bill Cosby's son's name? Ennis.
Kinda crazy, huh? Just had to share!