My first job as a '"dev"' (I really need some kind of super quotation mark for this).
I was young and too stupid too know how stupid I really was, I jobbed at a small recruiting firm and one day my boss complained about her database system and that she needed to hire a student to remake it. Suffering from the problem to be too incompetent to even recognise I'm incompetent I obviously offered my services as a python wizard I mean I could write a program that saves fibonacci numbers to a csv file, how much more could there possibly be? Fast forward two months and I proudly presented a GUI written in VB (it had an wysiwyg GUI editor) that was loosely frankensteined onto a bunch of together copy pasted python scripts running on a Windows Server. No web interface just accessible via vnc. It was slow, sluggish and soo ugly but it worked and did exactly what she wanted it to do. Sure the database was a bunch of csv files but non the less, to say it in pm, it resolved the user story. I quit shortly after because of her tendency to not pay the last bill after something was done (and tbh i deserved it) but she never removed my account from the server. So I copied my "magnus opus" from there... Let's just say whenever I look back at it I feel ashamed and yet it serves as a reminder to never be content with how good you are.