When I was young and dumb and student-teaching high school Physics class, I called the study of Biology the "Naming of Parts" in an ill-advised effort to dissuade one of my students from pursuing Biology.

While kind of funny, it was a cruel thing to try to dissuade anyone from their passion. Also, unbeknownst to me, the Biology teacher had just walked in behind me at that precise moment.

Also, I think engineers generally get the brunt of it — as in the joke:

Mathematician: Three is prime, five is prime, seven is prime, so by induction all odd numbers are prime.

Physicist: Three is prime, five is prime, seven is prime, nine is .... experimental error, 11 is prime, 13 is prime, etc.

Engineer: Three is prime, five is prime, seven is prime, nine is prime, eleven is prime, etc.

Relevant XKCD: https://xkcd.com/435/

He who dies with the most different chemicals wins.