What is one interesting fact about yourself that most people would not immediately guess

[Stu96]

Everyone tends to have at least one genuinely surprising fact about themselves that rarely comes up naturally in normal conversation, a past career completely unrelated to their current one, an unusual skill picked up somewhere along the way, or a genuinely interesting personal story that most people who know them casually would honestly never guess just from meeting them.

Sharing something like this is a nice, low stakes way for new and existing members to get to know each other a little better beyond the usual topics that dominate most other boards here. So what is the one genuinely interesting fact about yourself that most people around here probably would not guess just from your usual posts?