FWIW, about ten years ago I got a call from my ACP wanting a note because I called in sick after being given a reserve trip. I was not feeling well and wasn't sure if I would be able to fly the flt 8 hrs from then, so I thought I would do the right thing and give them plenty of notice to fill it now instead of waking up at midnight to make my decision 1 hr prior to show. When I came off of sick 2 days later I got the call from the ACP reequesting the letter. I said ok, and called my doctor. He said "I didn't see you 2 days ago when you were sick, I don't know what I can do for you? I thought about it and apologized for dragging him into this mess. I called the ACP back and said I can't give you a doctors note for being sick 2 days ago because I didn't go to the doctor. He said, Well, if you will promise me that you were sick then I'll let it go. I said That is what I was doing when I called in sick in VIPS, promising that I am sick. The union told me never to talk to that ACP again without them being with me.