"Nobody has a hobby of learning by heart the bones in the human body or the law texts on intellectual property;" I don't know anyone who likes learning about b

"Nobody has a hobby of learning by heart the bones in the human body or the law texts on intellectual property;" I don't know anyone who likes learning about bones, but I have actually met a guy, who was really passionate about quirks of IP related laws (my company hired him as consultant to clarify some mundane and fuzzy issues we had with usage of fragments of published academic books). He could talk for hours about various cases he worked on and was citing paragraphs of some obscure laws, going with true passion into detailed analysis how a given case looks in view of local Polish, Romanian, EU and international regulations. I would compare him to Rust, Lisp advocates easily.