I try not to follow the news too much, but I keep coming back to the story about the airline employee sent to jail for cussing out a passenger, who had accidentally hit him over the head with a bag but refused to apologize.
Which brings me to cavemen.
Cavemen do not understand the intricacies of capitalism. They do not care if you are the customer. If you hit a caveman over the head with anything softer than granite, he will think one of two things:
1) You are interested in courtship.
2) You need to be removed from the gene pool.
Our ancestors did not pour hundreds of thousands of years of survival instinct into our genes so that some idiot with an entitlement complex could bonk us on the head with a carry-on bag.
Which is why capitalism is evolution in reverse.