My project is a cloud based automated testing product. My current story is to extend a module to support multiple of a particular testcase type in one test run instead of just one. This has uncovered a rats nest of complexity because everything is designed with the assumption that there will only ever be one of these testcases.
Refactoring about 5 different classes just to get into a state where i can pass a list of testcases into a service instead of just one. Wrecking my head...