Knickers
A customs officer decided to search the luggage of three young women waiting to board a plane at Heathrow.
The first was from London.
"I see you have seven pairs of knickers in your luggage, Miss," the customs officer said to her.
"That’s right," she replied. "Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. Seven."
Next he searched the luggage of a young lady from Paris.
"So, you have just five pairs of knickers in your luggage, Mademoiselle?"
"That is right, Monsieur. Monday, Tuesday, Wednesday, Thursday, Friday. And then of course, there is the weekend!"
"I see!" said the officer, with a wink.
Finally the third young lady, who came from the north of England, opened her case.
"What’s this?" said the surprised officer. "Twelve pairs of knickers?"
"Aye, lad! January, February, March, April, …."