My toxic trait is I legitimately love FFXIV's Insatiable (Shadowbringers dungeon final boss theme) and think it's one of the best songs in the whole game, But Also, nobody's allowed to mention it in my presence without getting an "oh yeah, the hand-washing song!" E
Explanation: when COVID first hit there was a repopularization of handwashing techniques. One of the widely-propagated ones was advice to sing/hum/etc a song of suitable length to make sure you're scrubbing long enough. Now, the advice started at songs like Twinkle Twinkle Little Star, but everyone was bored and the internet is full of memelords so people started finding other songs, passages, etc.
It turns out Insatiable's vocal section is just about the perfect length to time your hand-washing with.
