1. The Marriage: Romeo and Juliet decide to get married in a rush, without thinking about the consequences of their actions. They are both young and impulsive, and they do not consider the potential obstacles to their relationship, such as their families' feud. Their hasty marriage sets the stage for the events that follow.
2. The Fight and Banishment: Romeo's hasty decision to fight Tybalt leads to the death of Mercutio and Romeo's subsequent banishment from Verona. This decision is made in the heat of the moment, without thinking about the repercussions it will have on Romeo and his relationship with Juliet.
3. Juliet's Potion: Juliet's decision to take the Friar's sleeping potion is also hasty and ill-conceived. She is desperate to avoid marrying Paris, but she does not consider the risks involved in taking the potion. As a result, she appears to be dead and Romeo believes she is actually dead, leading to his suicide.
Overall, Romeo and Juliet is a story about the dangers of making hasty decisions. The characters are often impulsive and reckless, and they do not take the time to consider the consequences of their actions. As a result, they end up paying a tragic price for their mistakes.