mad cow disease - the interview never seen on Irish Television

A TV INTERVIEW  WHICH WAS NEVER AIRED IN  IRELAND  ....    

In  a rural program for farmers, a female TV  reporter seeking the main cause of Mad Cow  disease, arranged for an interview with a farmer  who may have some theories on the  matter....

The interview was as follows:  .....
The  lady  reporter:  "I am here to collect information on the  possible sources of Mad Cow Disease.. Can you  offer any reason for this disease?"
The  farmer stared at the reporter and  said: ............... 
 "Do  you know that a bull mounts a cow only once a  year?"
Reporter  (obviously  embarrassed):  "Well, sir, that's a new piece of  information, but what's the relation between this  phenomenon and Mad Cow  disease?"
Farmer:  "And, madam, do you know that we milk a cow  twice a day?"
Reporter:  "Sir, this is really valuable information, but  what about getting to the point?"
Farmer:  "I am getting to the point, madam. Just imagine,  if I was playing with your tits twice a day....  and only screwing you once a year, wouldn't you  get mad?"

The program was never  aired..