@BrittJanic450@spin_oscar@tweetsbyJoy I think she is looking at it from the angle of Consanguinity and Affinity in the Marriage Act, specifically Affinity.
@EEdibowls It should be both ways. Both parties should say "thank you" to each other. The buyer needs the seller's goods/services, while the seller needs the buyer's money. So, they should thank each other. It should be a life style thing. It's simple courtesy just like saying "please"