"No banana, no circus" means just that: unless a company gives me the banana, I will not do my circus trick. Most consumers are exactly like that and so are the executives that run the companies that expect some circus act without giving out bananas.
Wendy's provides an example of how sometimes the banana that we're shown is not the one that we receive. Where's my jetpack has a post on how the burgers that are photographed for ads look so different from the ones we get at stores (check out the pictures here if you don't feel like following the link; the top is the ad picture, the bottom one is how a real baconator looks like), and this is an endemic practice in advertising: ads are "aspirational", they depict and idealized product in an ideal world but we're supposed to pay real money for them. I have no complaints about the fact that ads depict products that are idealized versions of the ones I pay for, my gripe is that the products I buy are often so different from their depiction in ads. That is, I am ok with a gap between depiction and reality as long as it isn't a yawning one. If you show me a shiny, yellow, just-ripe banana, don't deliver a week's old, withered and pock marked one.
The second case reminds me of Kafka and his book The Castle, the Cliff's Notes version of the book is that there is a courier or public servant (please bear the imprecision, I read it decades ago and my memory of details is not all that great) that is supposed to deliver a document to a castle. As it turns out, there are all sorts of bureaucratic requirements and other events that keep preventing him from doing so. Try as he may, all he can do is look at the castle that is perched on a mount overlooking the village without ever actually delivering the document.
Trying to get through to my phone provider (Verizon) is as close as I ever came from feeling trapped in a real life, Kafkaesque scenario.
My first call got me through to a rep that told me that she would provide me with "outstanding service". Not just any service or even efficient service, mind you, but actual "outstanding service", but my enthusiasm died in a few seconds as she told me that she could not solve my problem, transferred me to the right number but made sure that I had that number to call in case the transfer didn't go through... I thought that reliable transfers would be part of outstanding service but that was clearly a misconception I had.
After 20 minutes of outstanding wait, and countless version of muzak interspersed with commercials, I decided to call the number she had given me... it was perennially busy.
I called a series of other numbers with similar results and found out that trying and tricking the IVR to get to a live operator just awakens its evil instincts and gets us transferred to agricultural support or some other less useful department.
No I could not deliver the document to the Castle, I gave up after an hour. Again, the banana was not shiny and I am now considering bringing my circus act to another phone company.
Call it "delivering on the brand promise" or whatever else makes sense to you, but, in summary: be honest! Deliver what you promise and drop the absurd language from your phone queues.