Irrational things that annoy you (and non irrational things too come to think of it)

[Knipples]

The fact that in my car, volume level 13 is pretty much spot on for how loud/quiet I want it, yet due to my irrational dislike of the number 13, I either have to force myself to have it slightly too quiet on 12, or a bit too loud on 14

I also have to deliberately not look at the microwave clock when it's counting down, in case I see the number 13