The Fate Of Three Masons

It was on the 25th floor of the building in which three masons working together to complete the building often have daring tasks between them regarding the bravest among them. One day during the lunch break the 1st mason told that he will jump out of the building if he brings the same lunch the other brings. And even the others joined him because they don't want to be less brave than him. The next day, accidentally they brought the same lunch and put themselves to death. This was the fate of the wrong competitions.