Common sense is not always best.

@article{1991CommonSI,
  title={Common sense is not always best.},
  author={},
  journal={Nursing standard (Royal College of Nursing (Great Britain) : 1987)},
  year={1991},
  volume={6 5},
  pages={
          16
        }
}
When it comes to inserting suppositories, common sense is not always the most appropriate policy. Researchers asked 360 lay people and 260 medical personnel whether they inserted suppositories pointed end (apex) or blunt end (base) first. They then compared the two methods in 100 subjects. 

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