OK, but this is just a groundless statement, first you do not have
statistics to back you up, even if you have, you do not have
statistics for that particular clinic or nurse; second, it is common sense that we all tend to forget to lock the car even if we use the car everyday, or we may forget to close the fridge door even if we use it everyday, so it is not impossible for nursese to forget to change the needle in the lancet.
So I checked the statistics for hiv risk from reused lancet.