The best one-shot TTRPGs work best when they start in the middle of the action

I blinked. I’d been handed a character sheet just 20 minutes earlier. The only thing I knew was that I was the leader of a biker gang. There had been no lead-up, no introduction to the world of this tabletop RPG. I didn’t know who this screaming woman was, how I’d ended up trapped in her trailer, or even whether I had the information she was trying to beat out of me.