> Professional Engineers do not make mistakes. They are real engineers.

My _literal_ engineering 101 case studies on "engineering failure":

https://en.wikipedia.org/wiki/Tacoma_Narrows_Bridge_(1940)

https://en.wikipedia.org/wiki/Hyatt_Regency_walkway_collapse

https://en.wikipedia.org/wiki/I-35W_Mississippi_River_bridge

Are all failures traced down to the underlying design and engineering. Granted, they are famous because they are rare. I almost linked the Columbia disaster but that is sufficiently murky between engineer and management.

Stop being elitist.