When Gracie smacks Hank in the face with her notebook and it snags painfully onto his nose, he instructs her to let go, to which she objects "But it has original research!", as if letting it go would destroy it or otherwise deprive her of it forever. This is an intelligent woman, a university professor, she should understand that this "letting go" need only be temporary, he only needs the notebook for a moment, just long enough to gently dislodge it from his face, she would clearly immediately get it back.