What's a minor or irrelevant thing from your source that still feels oddly important to your kin identity?

Like, any small detail about you (or your world, or a group you're in, etc.) that may have been mentioned once or twice or even just implied or said by outside sources or the like
And that doesn't have much of an impact on or relevance in your source overall yet still feels really important to you/your personal identity for some reason

.

For me personally, it's that I (VP) am part bacteriophage in nature
Or even just part virus in general really
It's a tiny detail that's visually implied at best and just a fun reference by the creators at worst, which is visible for just one episode and which I'm sure half the viewers may not even be aware of

And yet to me it's somehow so important that I get way too excited whenever it's mentioned or referenced in the fandom, and that I kind of designed a version of my kinsona around it
...And that I now have a whole headcanon (which may or may not be a memory ngl) about how this biology may have actually affected me and my daily life in source-

Though tbf I don't even know if anyone else has anything similar like this
Just figured I'd ask around if anyone does- if so, please do yap about it if you'd like ^^