I used to draw maps too.
For more than a decade I've really been into heraldry. I know (in theory) my dad's family's coat of arms, I'm almost certain of my mom's family's coat of arms, and I'm almost certain of my dad's mom's family's coat of arms (as well as the Limerick County, Ireland tartan to go with it).
Do you have any odd hobbies or past-times?
One of mine is drawing maps. I use colored gel pens to indicate various things like highways, rail lines, streams, etc. I worked on one metro area for two years and the whole thing, when taped together, was about 10 x 10 feet large.
I lure people into my van, then kidnap them so I can eventually skin them and wear their skin as clothing.
Idk if it is quirky or nerdy but like building retro gaming systems. Have a SNES, NES, Sega Genesis running on a Raspberry Pi and I have a complete 31 system running on a old built up computer that uses Hyperspin as the front end viewer/system/game selector.
Edit: poster above beat me to it, but also do some homebrewing. Right now have a summer special in the closet