An Englishman, an Irishman & a Scotsman were doing construction work on scaffolding on the 20th floor of a building. They were eating lunch and the Englishman said, "Corned beef and cabbage! If I get corned beef and cabbage one more time for lunch I'm going to jump off this building. The Scotsman opened his lunch box and exclaimed, "Haggis again again! If I get haggis one more time I'm going to jump off, too." The Irishman opened his lunch and said, "Potatoes again. If I get one more potato I'm jumping, too."
Next day the Englishman opens his lunch box, sees corned beef and cabbage and jumps to his death. The Scotsman opens his lunch, sees a haggis and jumps too. The Irishman opens his lunch, sees a potato salad and jumps to his death also.
At the funeral The Englishman’s wife is weeping. She says, "If I'd known how really tired he was of corned beef and cabbage I never would have given it to him again!" The Scotsman’s wife also weeps and says, "I could have given him something else! I didn't realize he hated haggis so much."
Everyone turned and stared at the Irishman’s wife. "Hey, don't look at me." she said. "He makes his own lunch."