Remember the episode Anne? The idea is to write a crossover alternative. Instead of having 'Anne' be a waitress in Helen's Kitchen in L.A. have her be one in Colorado Springs (SG1), or Toronto (Forever Knight), Roswell, Wonderfalls, etc.
She must be a waitress for at least part of the story.
She has to be working at a diner in the town the show takes place in. This removes Harry Potter, Lord of the Rings, etc.
She must meet a minimum of one main(-ish) character from the other 'verse.
She must cover up for a slip she makes, or comes close to making, in reg...