sensitive men of the South

Three blokes from Brakpan were working up on a cell phone tower - Frik, Piet and Koos. As they start their descent Frik slips and falls off the tower and is killed instantly.
As the ambulance takes the body away, Piet says, "Well, damn, someone should go and tell his wife."
Koos says, "OK, I'm pretty good at that sensitive stuff, I'll do it." Two hours later, he comes back carrying a case of Castle.
Piet says, "Where did you get that beer, Koos?"
"Frik's wife gave it to me," Koos replies.
"That's unbelievable, you told the lady her husband was dead and she gave you beer?"
Well, not exactly", Koos says. "When she answered the door, I said to her, you must be Frik's widow'."
She said, "You must be mistaken, I'm not a widow."
Then I said "I'll bet you a case of Castle you are."