Ok, so this little boy's birthday is coming up...and his dad asks what he wants for his birthday.
kid:  "I want 10 green golf balls dad!"
dad: "why?"  he is puzzeled by the request.
kid: "just do"   So the dad gets the boy what he wants for his birthday and the next year comes round.
dad: "what do you want for your birthday this year son?"
kid: "I want FIFTEEN green golf balls"  
dad: "what happened to the ones you got last year son?" 
kid: " I still got em, i just want more!"
So the dad begrudgingly fulfills the request.

This goes on year after year, with the number growing larger.  Never an explanation..
so the kid's 16th birthday approachs
The dad walks up to his son..
"how many green golf balls do you want THIS year?"  with a heavy sigh.
"I don't want any."
"HUH?"  Dad is flabbergasted!  Just fucking amazed!
kid:  "I want a brand new 4X4 truck.  All souped up, cd player..the works!"
Dad is so fucking excited he agrees and for his 16th birthday the kid gets a brand new truck.
A fews weeks go by and one saturday dad notices son going in and out of the house a lot, so he peeks out the front curtain.
"what the hell?"  He sees his son loading up the golf balls he's accumulated over the years. 
 He watches with his curiosity eating away....after about an hour the son finishes - the truck is just LOADED with those green golf balls.  
The son gets in his truck and starts backing out of the drive, when all of a sudden
CRASH!  he's hit by a semi he couldn't see because of the green golf balls.  and those green golf balls FLY EVERYWHERE -  
I mean little ol lady crawford two blocks away was finding green golf balls in her rose garden for years to come...
anyway, the dad runs out to the mangled truck trying not to trip on the 
damn green golf balls on his way to his obviously dying son..he gets to his son, cradles the bloody body in his arms..
"SON!! my ONLY son, oh son, I love you" tears start to form
"dd-d-daaad, *cough-sputter* dd-dad, i-i-i-i llloove you *spit blood-cough* ttttoo, tell mm-mmom I love *cough* her too"
  his eyes start to close, he's got blood covering his face, and eye is crushed.  
the dad rocks his ONLY son
"son, before you go, you gotta tell me one thing *sob*"
"any *cough* thing dd-dad"
"what were you gonna do with those green golf balls?"
"dad I was gon-"  and then he died.