My daughter in Law - Saturday night - she's a very intelligent woman, a computer consultant, and not usually a "dizzy" blonde (she is blonde, though). Two men come into the restaurant, both wearing Leprachaun hats.
"Look at them", says d-i-l.
"Well they're probably Irish. It's St Patrick's day today", says son.
"Oh, I never knew that was the day before Mother's Day", says d-i-l.
