A guy was at a dinner party in the middle of winter, and the corn on the cob was outstanding, like it was just picked an hour earlier. He raved to the host and asked where he got fresh corn at that time of year. The host said "That corn was frozen last fall. I learned this new trick of shucking the corn and putting each one in a condom, closing them tightly, and then freezing them."
The next fall the guy bought a couple bushels of fresh corn on Friday after work from a local farmer and then stopped at the drug store on the way home and bought a gross of condoms. The pharmacist looked at him a bit strangely as he paid his money. The guy brought it all home, shucked the corn, put each ear in a condom, closed them tightly, and then stacked them in the freezer neatly in 12 rows of 12. When he got to the top row, he ran out of condoms at 11 in that last row.
On the way to work the following Monday, he stopped as usual at the drug store to have a cup of coffee on his way to work. As he was paying the pharmacist, he said "Hey, by the way, that gross of condoms I bought from you on Friday was short one." And the pharmacist, with a confused look said "Well, I hope I didn't spoil your weekend!"