Good humour is a very sensitive emotion. It succeeds only when both the perpetrator and the person or the people in the receiving end are both sensible and sensitive about the contents of their joke. In other words, a healthy joke will steer clear of vulgarity or exploiting a weakness of a person or a community. Sometimes, the most well intended humour can go awfully wrong creating resentment and even enmity for the humorist.
A tale from the Shiva Purana recounts how even the mighty Lord Vishnu was not spared for having played a practical joke on his dearest devotee Narada. Once, Narada was besotted by the beautiful princess Shrimathi. He wanted her to choose him during her Swayamvara. He realised that if he wanted his dream to come true, he must be the most attractive suitor. Narada was also aware that Mahavishnu possessed the most charismatic face in the universe. Therefore, he sought to be blessed with Harimukha (the face of Vishnu also known as Hari) for the Swayamvara. The amused Lord decided to play on the pun on the term Hari which also meant monkey. Narada’s visage was transformed to that of a simian, but he was unaware of the joke. He went along to the Swayamvara only to be laughed and jeered at.
When Narada realised that he had become the laughing stock at the court, he was deeply hurt. He cursed the Shiva Ganas who prompted him to look into the mirror and embarrassed him. He marched to Vaikunta and confronted Lord Vishnu angrily about the breach of trust. He cursed the very Lord he adored to experience separation from his spouse. Once Narada gave vent to his rage, Mahavishnu explained that he had made Narada the butt of his joke to make him realise that he had swerved from his chosen path of eternal celibacy. In fact, the whole episode was structured to awaken the sage from his disillusionment. Narada understood his mistake and made haste to retract the unreasonable words blurted out in a fury. However, Mahavishnu accepted the curse gracefully because it would facilitate him to play out his manifestation as Rama, but more so because he wanted to establish the fact that when humour does not go well with the recipient then things can sour up.