My first job was 3 years ago.
I was tasked to create feature updates for a referral system.
There were two programmers in that project , both had left the company before I started.
There left no documentation whatsoever. They gave me a copy of user manual as my guide. HAHA!
Half of the code was in code igniter framework(wasn't even familiar with it then), the other half was hard coded.
It was a total nightmare. Wish I had the guts to call it quits then and there. XD