Here's a chance for folks to exercise their minds a bit, if they're inclined to do so. What do you make of the following hypothetical situation?
There are two people. One earns a living by selling something. The other has purchased from this seller in the past, and currently still wishes to buy what is being sold, albeit not necessarily from this particular seller, but in general. But the seller says in no uncertain terms that they will not sell to this particular buyer under any conditions. What conclusions would you draw? What if the situation existed with multiple sellers? I'm particularly interested in hearing from people who sell things for a living.