I personally would never use such a service, but if you want to use one for novelty or fun, more power to you. Of course, a certain amount of caution should be applied — while HIPPA regulations may prevent your employer from checking on your medical status, using these fake or novelty notes for paid leave is ethically unsound, read more about it by clicking here to read on the Legal Ramifications of fake doctors excuse forms. And if you are a daredevil and try to use these in open court — it is a sure-fire way to earn you at the very least a contempt-of-court citation, and very likely see some jail time if you used a real doctor’s name.