This couple goes to an agricultural show out in the countryside on a fine Sunday afternoon, and are watching bulls being auctioning off.
The auctioneer announces the first bull to be sold "A fine specimen, this bull reproduced 60 times last year."
The wife nudges her husband in the ribs, & comments, "See! That was more than 5 times a month!"

The second bull is to be sold: "Another fine specimen, this beast reproduced 120 times last year."
Again the wife bugs her husband, "Hey, that's some 10 times a month. What do YOU say to that?!"
Her husband is getting really annoyed with this comparison.

The third bull is up for sale: "And this extraordinary specimen reproduced 365 times last year!"
The wife slaps her husband on the arm and yells, "That's once a day, every day of the year! How about YOU?!"

The husband was pretty irritated by now, and yells back, "Sure, once a day! But ask the auctioneer if they were all with the same cow!!"