I’ve used very similar techniques on men in bars who don’t think no is a complete sentence.
I’m well past the age for shame. I will make a fool of myself if it means some twerp will think twice about harassing a woman who’s repeatedly turned them down
I’d never considered doing the same for scammers - great idea! I’m just overly polite and that makes me seem like a target I think.
I have personally yelled, “Fuck off! No means no you fucking creep!” at the top of my lungs in a crowded bar. It was genuine, but over the top so every other person would turn and see them, ruining their chances of “picking up” at that establishment, forcing them to leave.
“Are you okay?”
“Oh, yeah I’m fine. That guy just needed to learn a fucking lesson.”