Hang the code, and hang the rules. They're more like guidelines anyway.

My students were working in groups the other day. Here's what I overheard:

"Everyone says that red meat is bad for you, but I brown it. So it isn't red any more, it's brown!"

In another group, one student was getting a lot of feedback about his use of commas. After being told to remove about 10 commas in one page, he declared himself the Comma Queen. One of the other students gave him a funny look, and he just smiled and said, "Yup, I'm coming out of the Comma Closet!"