Found this on reddit, most of us had been in this situation😀

5/10 no giant nuclear explosion

@Peckoij

Boss: Client says the app isn’t working when they turn the doorknob. I need the doorknob functional by end of day.

Dev: Yeah I’m not sure, we just tested the app and doorknob functionality is 100%, it turns both ways, all 360 degrees.

I don’t get it, I don’t test.

you can check monkeyuser.com for more ;)