Oh, definitely hard disagree with this! I am an engineer because I love it and because it brings me joy, and I love love LOVE things that involve humor and fun within the realm of what is oftentimes just work. It delights me when people can find ways to be creative and tongue-in-cheek and not take things so seriously all the time. It is one way in which we can have fun in our work. For me, the idea of keeping all my fun separated from my work sounds like a dystopian nightmare!