I put Haskell as last language on my CV, despite it being the language I'm most comfortable with and genuinely like, just because I don't want to be "that" guy
EDIT: I'll never put TI-84+ calculator ASM on my CV, but damn, I'm proud I knew it in secondary school
Yeah, it was fun until it was a huge project. I even was tutor in a lecture about Haskell and SQL once even though I hated SQL. Now I tell people in my job interviews what a great SQL tutor I was