Put it at the decision point in your edit, right before the bad choice happens, then follow it with Damn Meme Sound Button for the aftermath, or layer Oh My God Wow Sound Button after it when the reaction needs to escalate further.
About this sound
The clip is a short male voice line delivering the phrase 'Lord have mercy, I'm about to' in an exaggerated, pleading tone over about four seconds. It feels funny and wildly overdramatic, like a last-second cry for help before giving in to temptation or losing control completely in the moment.