I wasn't a raver but I went to a couple, and wow, what a time. There's nothing quite like the smell of a diesel generator and the sound of earth-shaking bass surrounded by dancing zombies inventing dance moves on each beat, deep in a pacific north west forest. I had a few of friends who were into that scene.
I remember one guy, years ago, who ended a 45-second year-end cold call with me with a "Come on man, I have a family. At least hear me out!" I responded, "Get a better job then. I have work to do." As a moral human, I feel sort of bad about that response, but then I remember there's a substantial likelihood he was lying to me to keep the call going to score a sale and the grift depends on me being moral.
The way I vindicate myself morally is by knowing I’m not wasting their time this way. People like me are dead ends —— I know that I’m never going to be convinced to buy whatever they’re selling in a million years. By ending the call quickly, I feel like I’m doing them a favor. They can move on to someone who might actually be interested.