I have dx contamination ocd. Almost everything I do every day all day is "weird" to everyone else.
There is a LOT of handwashing (cliche I know)
Also lots of disinfecting and general cleaning.
But there's also a LOT of
Counting
Tapping
Checking
Saying things out loud (so I remember I've done this which also means I am reassured that eg yes I DID turn the cooker off)
Making lists on my phone (seriously about 200 lists in my notes app, not even close to kidding - just checked it's closer to 300)
I have "rules" for everything I do. When I'm REALLY bad this can include regulating and counting how much I blink, swallow, even breathe!
In the not that distant past I have had jobs where:
I've had to keep my identity private - to the point I couldn't disclose anything about myself or my family including my name
I've had to use antiquated communication methods (talking 19th century on occasion) because digital ones aren't secure. Part of this meant I had purple hands a lot of the time.
I've had authority over very high level people including royalty and what they were/weren't allowed to do in particular settings
I had 5 different pass codes to use to get into my workplace - and back out again! (And I had to notify the boss exactly when I was leaving too)
I've been present for the best and worst days of people's lives sometimes in the same day