There were these two…

There were these two builders called Pat & Mick who were working on a building site. One day, during their lunchbreak, Pat notices something in Micks lunchbox:
“What’s that long silver thing in your box Mick”? “Oh, that, its my Thermos Flask” replies Pat “What’ s a Thermos Flask”? enquires Mick “It keeps hot things hot and it keeps cold things cold” Pat informs Mick “That’s a marvelous idea”! says Mick “You know what, I’m gonna get me one of those” The next day Pat spots Micks shiny new Thermos flask and says to Mick
“I see you got one then” “Oh Yeah,” says Mick “What have you got in it then”? asks Pat “Well I’ve got Tea and a Chock Ice!”