Three bulls heard via the grapevine that the rancher was going to
bring yet another bull onto the ranch, and the prospect raised a 
discussion among them.
 
 First Bull:  "Boys, we all know I've been here 5 years.  Once we settled
  our differences, we agreed on which 100 cows would be mine.  Now, I 
  don't know where this newcomer is going to get HIS cows, but I ain't 
  givin' him any of mine."
 
 Second Bull:  "That pretty much says it for me too.  I've been here for 
  3 years and have earned my right to the 50 cows we've agreed are mine. 
  I'll fight 'im till I run him off or kill 'im, but I'M KEEPIN' ALL MY 
  COWS."

 Third Bull:  "I've only been here a year and so far you guys have only
  let me have 10 cows to "take care of".  I may not be as big as you 
  fellows (yet) but I am young and virile, so I simply MUST keep all MY 
  cows."

    They had just finished their big talk when an eighteen-wheeler pulls 
 up in the middle of the pasture with only ONE ANIMAL IN IT: the biggest
 Son-of-Another-Bull these guys had ever seen!  At 4700 pounds, each 
 step he took toward the ground strained the steel ramp to the breaking 
 point.
 
 First Bull:  "Ahem_You know, it's actually been some time since I felt 
  I as doing all my cows justice, anyway.  I think I can spare a few for 
  our new friend."
 
 Second Bull:  "I'll have plenty of cows to take care of if I just stay 
  on the opposite end of the pasture from HIM.  I'm certainly not looking 
  for an argument."
 
    They look over at their young friend, the 3rd bull, and find him 
 pawing the dirt, shaking his horns, and snorting.
 
 First Bull:  "Son, let me give you some advice real quick. Let him have
  some of your cows and live to tell about it."
 
 Third Bull:  "Shit. He can have ALL my cows. I'm just making damn sure
  that he knows I'M a bull!"