I am currently working on very very bad designed solution. I doubt if it can be written any worse.
When I inherited it, at first I thought it was done by some intern, but later on I found in repo full name of original creator. In free time I googled the guy and I was in shock. The culprit has more than 15 years of professional experience. For 12 years he worked at one place and than ~1 years in 3 different companies. It seems he cannot hide his incompetence anymore :)