Mick is doing a crossword puzzle. He looks perplexed so Paddy asks him if he's stuck on a clue.
"It says here 'Old McDonald had one'" says Mick.
"That's easy." said Paddy, "It's 'FARM'".
"Of course it is!" says Mick. "How do you spell it?"
"I'm not sure," replied Paddy,
Spoiler: