An electrician, a carpenter and a brick layer are on a building site eating their lunch. The electrician opens his lunchbox and exclaims, "I don't believe it - tuna sandwiches again!! If I get tuna tomorrow, I'm going to climb up the scaffolding and jump off!"
The carpenter opens his lunchbox and exclaims, "Would you believe it - cheese sandwiches again! If I get cheese tomorrow, I'm going to climb up the scaffolding and jump off!"
The bricklayer opens his lunchbox and exclaims, "Oh no - ham sandwiches again! If I get ham tomorrow, I'm going to the top and jumping off as well!"
The next day, they all sit down to lunch; the electrician opens his lunch. "I don't believe it - tuna!" Goes up the scaffolding, jumps off, dead.
The carpenter opens his. "Oh no - cheese!" Climbs up, jumps off, dead.
The bricklayer opens his. "Oh no - ham!" Climbs up, jumps off, dead.
Week later the funeral takes place. The priest is comforting the widows. The electrician's widow is crying and says to him, "I don't understand it. If only he had told me, I would have given him something different!"
Priest goes to carpenter's widow. "I don't understand it either, if he had told me I would have packed something different!"
Bricklayer's widow is crying and exclaims, "I REALLY don't understand it, mine made his own sandwiches!!"