Marsea...I flew the line at a major for 30 years. For about 5 years I was a line check airman on the MD 82`s, 88`s 757`s and 767. On occasions I would be assigned to check on someone who possibly had a training problem or possibly reported as doing some "non standard" stuff. Other times just told that Pilot "A" needed a line check. All I would look for was to see that proper proceedures were being carried out. It`s no big deal. We are all big boys and know what is expected of us. Just do the job that you were trained to do and stop trying to analize the "why" you are getting a check. Here`s a good piece of advice...when the flight is over, and you are packing up your black bag, ask the check airman, FAA inspector, or who ever just checked you if they have any comments. Put them on the spot to make any comments they might have. Here`s another piece of advice. Never, ever deviate from the correct proceedures if you have a jump seat rider of any type. I know of a guy that got turned in by a controller who was just "riding along". Lighten up and forget about it.