An-Nawwaas ibn Sam'aan that the Prophet (peace be upon him) said:
"Righteousness is good character, and a sin is what wavers in your soul and you dislike that it is exposed to the people." Related by Muslim.)
My take on this:
This hadith is a good metric for engaging in doubtful actions. If you are not comfortable sharing your actions from last night, there is a strong possibility that it is not the best of actions. Allah knows best.
It is good to think about his hadith when engaging in dubious actions
Be safe and take care.