A thumbnail that long triggers me! How can you stand that??
If mine get much longer than where that brown dot is (I'm gonna assume that is a healthy taco remnant and not dirt or shit or something), it will drive me insane until I cut them. Any of my fingernails. Even typing with them just a little long annoys the fuck out of me.
I worked with an old guy that let all his fingernails grow out like that, and we used to work off of physical plan pages, and he'd drag his fucking nails across the page every time he was looking for something or pointing it out. Add that to the huge ferns growing out of each nostril and the cigarette breath, and it is sort of amazing that I didn't murder him before he retired and then eventually
