Friendship is Magic
I did warranty work on PCs & laptops for years. The absolute weirdest thing I came across was a 70 year old guy that was OBSESSED with My Little Pony, both the original and the newer show. This went far beyond what even a “Brony” would do.
He had every toy he could get his hands on (all on shelves displayed), posters everywhere, 3 tv’s all playing different episodes on repeat (I was there long enough to verify that one) and even had a mural painted of all the pony’s from the newer show on the wall of his living room.
When his PC booted up, it played the theme song and every icon was changed to one of the pony’s. During the whole repair, he kept asking if I liked the show, who my favorite pony was, etc. Story credit: Reddit / Kervon37