A couple of Irish labourers were working on a building site when the phone rings.
Patrick goes off to the site office to answer the phone.
He returns a few minutes later and says, “The boss has been on the phone. He says they are sending down a thousand bricks this afternoon”.
“My God” cried Murphy in disbelief, “how many bricks are there in a thousand?”
“I have no idea” said Patrick, “but there must be millions!”