"We can't send Sierra and Robbie in the same group. It is never a good idea to send mixed male-female groups for overnight business trips.

"We can't send Sierra and Robbie in the same group. It is never a good idea to send mixed male-female groups for overnight business trips. There is too much chance for hanky-panky and then you end up with divorce or worse, a sexual harassment lawsuit!"

a.      Is this an example of legal or illegal discrimination? Is this an example of a fair or unfair management practice?

b.      what details of laws and the behaviors that make this example likely to be legal or illegal, unfair or fair?