The Truth About Punch Buggies

So I was walking with my friend Kristie to her car the other day to get our presentation bristol boards. We were walking back to the school and I spotted a lime green punch buggy, so I of course gave Kristie a small bunch and said "Punch buggy, no punch backs." She started to explain that it does not count, because it was not an older model of punch buggy, and technically, she is allowed to punch me back. She didn't, but proceeded to explain certain rules about what used to be simply known as the Punch buggy game. Apparently, color is now important. For example, because I didn't saw "Green punch buggy, no punchbacks", she had the right to punch me back. I asked if there was some sort of rule book that I had been sheltered from or something, because these rules seemed ridiculous. It used to be a simple punch whenever one saw a punch buggy of any color, of any make. Next thing I knew, Kristie was explaining about another similar take on the punch buggy punch, the "Cadalac Whack." I thought for sure at this point she was making it up, but she swears by it. Has anyone else ever heard of such strange rules? Whatever happened to making things simple? Somebody needs to write a rule book.
CHRISSY