A man walks into a bar with a pork pie on his head. He orders a drink and the barman asks, ''Why are you wearing a pork pie on your head?''
The man replies, ''It's a long-running family tradition. We always wear pork pies on our heads on Tuesday.''
To which the barman remarks, ''Then I have some bad news for you - it's Wednesday.''
Sheepishly, the man says, ''Oh dear, I must look like a real fool!''