In my 40 years as a manager for a large company, I have seen many sick excuses that were questionable. Even fake doctors forms can be produced easily with templates. The person giving you the template note knows that is very unlikely that a manager will verify the source of the excuse.
They know how difficult it is to try and get information from a doctor’s office, urgent care or the hospital. This way they get a free day from school or work just filling out simple forms to look legit. Basically, we have many reasons to say thanks to doctor’s notes manufacturers that had made acquiring these notes easily.
Once the template is made they just use it over and over to their convenience by filling in the form with the new information and excuses. A lot of young people will do this since they are all very much tech savvy. There are a lot of doctors note template options online but you have to look around.
Do not use young people as the entire example of this cheating. I have found that many older people also use this method to stay out of the workplace. They love getting paid and having a good day off to get their personal things done. Even if they are not paid they will produce a dr. excuse for being off due to sickness. You know it and it really does no good to pursue it. You can only save what you feel is a fake doctors note for future reference and hope it doesn’t happen too often. It is not profitable to have employees losing work. You have to know when enough is enough and then prove it. If we are real lucky someone may have snapped their picture on their smart phone with the date stamp at a beach. Surprise! My suggestion? If you are really sick, get a real doctor’s note.