Not only is it interesting, and not only is it something they could have left for later
But why would someone be upset at a quick 10 second mental break from work? Take a second to breath. Let out some stress. You didn’t send them a novel and require them to read it then and there and throw all of their work off. It was just a quick little micro break.
It is a protected class
The first amendment is the thing you’re missing with all of this. People can discriminate against gay people. But only if it takes away their first amendment. The courts ruled that art should not be forced. So they don’t have to serve gay people. But if someone is selling a car, that has nothing to do with art.