Paddy and Murphy who were unemployed decided to go to the mainland to work in the mines in Derbyshire, "But I've never worked in a mine before in my life" said Paddy, Neither have I" said Murphy, "But they don't know that, do they, Its a long way from Wales, so we'll say we've worked in the mines in Wales, they can never check, then we will pick it up as we go along!!" So they arrived at the mine, the manager said to them "Tell me, where have you worked before?" Both together they said" Oh we've worked in the mines in Wales" the manager replied, "Well we've never had anyone from the Welsh mines, tell me, what sort of lamps do they use?" Straight away Murphy spluttered "Oh we never went on the night shift, did we Paddy!!.