The Fringe experience wasn't new for me. My debut as a moorhen in a student musical went down a storm. Later, moving on to bigger and better things, I performed with Frisky & Mannish as a "small child" on the cabaret circuit. And I'd also been a lot of times just to get sloshed in the Pleasance Dome.
The central character in Punch is the most heinous, twisted, barbarous person I have ever tried writing. He's impervious to any shred of empathy, tact or compassion and yet I agree with (almost) everything he says.