A software developer and a software tester walk into their newly opened bar. The tester orders a beer. Orders 0 beers. Orders 99999999999 beers. Orders a lizard. Orders -1 beers. Orders a ueicbksjdhd. The developer says, “See? It all worked. I told you everything was fine.” First real customer walks in and asks where the bathroom is. The bar bursts into flames, killing everyone.
Heard a variation of this at work the other day. Note, I have been both developer and tester in my career and fell into the above trap several times.
For those few of you that smiled at this, I strongly recommend reading the replies to this Tweet. It is hilarious. https://twitter.com/brenankeller/status/1068615953989087232?lang=en