Hot & Cold
Paddy walks into the site office carrying a flask.
Murphy: '''What you got in there then?''
Paddy: ''Tis a new flask.''
Murphy; ''What's it do then?''
Paddy: ''It keeps hot tings hot and cold tings cold.''
Murphy: ''So what you got in it then?''
Paddy: ''Two cups of coffee and an ice cream.''