Coming to your town soon, genetic test to see if you will make a faithful husband.

We men, come into the world with different
dispositions. Some men may be genetically inclined
to have and hold a single partner, while some may not.
In the near future, it is being mooted by futurologists
that young women may demand genetic tests of their
boyfriends to assess how likely they are to make
faithful husbands.

Source The secret lives of the brain David Eagleman
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