When I was a teenager, we put vodka into the shamrock shake mix, because "it wasn't irish enough".
Big hit with the local teens who frequented our mall McDonalds. How we got away with no criminal charges, now that I'm thinking about it 20+ years later, I have NO idea. I was 16 at the time. I think even the shift leader was only 19. And no matter what age we were, we were still knowingly selling alcoholic drinks to minors.
The only one I ever made up an excuse for, is when this mom wanted a shake for her 7 year old. THAT one I was like "Uhhhhhh, ya know what? Our shake machine is actually broken......yep........ignore the employees behind me serving shakes from it right now."
She started yelling at me for discriminating against her, and being a lazy employee. Alright. Cool. I'll take that heat. Because even I wouldn't serve vodka to a 1st grader. As terrible of a teenager as I was, I guess I still had some limits.