When Did You Know It Was Working?

I think i was in eighth grade or ninth grade when it came out. And i remember thinking, this is going to be stupid, cause it was based on a sketch. When did you know it was working? Oh, i never forget it. One of the things i look back at in my experience and in it, i will literally never, ever, ever forget being in a test screeningso you didn't, you even know was good the whole time you did it. I've never, ever been a part of anything ever like that. Ever.