ZuB: “Kurze Frage, Sie heißen nicht Q, oder?”
Ich: “Doch”
ZuB: “Nur eine Buchstabe?”
Ich: “Genau”
ZuB: “Nicht eine Abkürzung? Ich hatte gedenkt, dass Ihr Deutschlandticket ungültig war. Ja ok keine weiteren Fragen”
@q are you facing a lot of problems with your name being "invalid", and how do you deal with them?
@jomo “no it is in fact you that is in the wrong, shut up”
@q I was thinking about technical things like a form field that demands a min length. I've come across a bunch that require 2 characters at least.
Falsehoods Programmers Believe About Names | Kalzumeus Software

Classic essay about how software routinely bumbles human names.