सभा वा न प्रविष्टव्यं वक्तव्यं वा समंजसम् |
अब्रुवन् विब्रुवन् वाऽपि नरो भवति किल्बिषी ||
One must not go to a gathering without proper preparation. Even when one does, one should not speak inappropriately. It does not matter whether your bad words were intentional or accidental. You will be guilty.
- Manu Smriti